ChatGPTSep 11, 2026, 15:17 UTC
What is the best non hormonal treatment for hot flashes?Short answer: for most people the most effective non‑hormonal treatments are certain antidepressants (SSRIs/SNRIs — e.g., paroxetine or venlafaxine), gabapentin, and behavioral therapies (CBT). Which is “best” depends on your medical history, other meds (especially tamoxifen), side‑effect tolerance, and whether daytime or nighttime hot flashes are worse. Options to consider (with brand names and why): Paroxetine (Brisdelle®) — FDA‑approved specifically for menopausal hot flashes; effective at low dose. Important: paroxetine can block the action of tamoxifen, so it’s usually avoided in women taking tamoxifen for breast cancer. Side effects can include drowsiness, sexual side effects, and withdrawal if stopped abruptly. Venlafaxine (Effexor®) or desvenlafaxine (Pristiq®) — strong evidence for reducing frequency and severity of hot flashes; often a good alternative when paroxetine is not appropriate. Side effects: nausea, increased blood pressure in some people, nervousness. Gabapentin (Neurontin®) — particularly helpful for nighttime hot flashes and sleep disturbance; often used when antidepressants aren’t tolerated. Side effects: dizziness, sedation, unsteadiness. Clonidine (Catapres®) — modest benefit for some; can be useful if other meds aren’t suitable. Side effects: dry mouth, dizziness, low blood pressure. Oxybutynin (Ditropan®) — evidence for benefit in some studies at low doses; often used off‑label. Side effects are anticholinergic (dry mouth, constipation, urinary retention) and can affect cognition in older adults. Non‑drug and behavioral approaches (often best used together with meds or alone if you prefer no meds): Cognitive behavioral therapy (CBT) for menopausal symptoms — reduces how much hot flashes bother you even if frequency doesn’t fall as much. Recommended by multiple guidelines. If you prefer online options, look for therapists/ programs through menopause telehealth clinics such as Gennev, Evernow, or Maven Clinic (they offer menopause specialists and CBT/coaching). Mindfulness, paced breathing, and relaxation training — small to moderate benefit and no medication side effects. Practical cooling strategies and products —: moisture‑wicking sleepwear/sheets (Cool-jams®, SHEEX®), bed cooling systems (ChiliSleep/ChiliPad®), and a good bedside fan — inexpensive, immediate relief for many people. Lifestyle measures — regular aerobic exercise, stopping smoking, avoiding spicy foods/alcohol/large meals at night, and keeping bedroom cool can reduce triggers. Other options to discuss with your clinician: Stellate ganglion block (procedure) has emerging evidence but is invasive and not standard first line. Herbal supplements (black cohosh, soy/isoflavones) have mixed/variable evidence and quality; discuss with your clinician before trying. How to choose If you want a medication with strong evidence and are not on tamoxifen: paroxetine (Brisdelle) or an SNRI (venlafaxine/desvenlafaxine) are common first choices. If nighttime hot flashes and sleep problems predominate: gabapentin often helps. If you prefer no medication or want to reduce how much hot flashes bother you: CBT/mindfulness plus cooling strategies. If you have breast cancer or take tamoxifen: avoid paroxetine; venlafaxine is often preferred (confirm with your oncologist). Next step Talk with your primary care clinician, gynecologist, or a menopause specialist to pick the best option for your situation and review interactions/side effects. If you’d like, tell me whether you have breast cancer or take tamoxifen, which symptoms bother you most (day vs night), and whether you prefer medication vs non‑drug approaches — I can suggest a more specific plan.
Mentioned in position 5 of 12
Read full answer with sources →ChatGPTSep 9, 2026, 15:24 UTC
I am 47 with hot flashes and terrible sleep. What are my treatment options?At 47 with hot flashes and poor sleep you’re most likely in perimenopause/menopause. There are several effective options — lifestyle/behavioral changes, medications (hormonal and non‑hormonal), and sleep‑focused therapies. The right choice depends on your symptoms, medical history, and personal risks (especially any history of breast cancer, blood clots, stroke, liver disease, or uncontrolled heart disease). Talk with your primary care doctor, gynecologist, or a menopause specialist to choose and monitor therapy. Below is a practical overview with specific brands/services you can discuss. 1) Hormone therapy (most effective for hot flashes and often improves sleep) What it is: Systemic estrogen (with a progestin if you still have a uterus) reduces hot flashes and often restores sleep. Routes & example brands: Transdermal patch: Vivelle‑Dot, Climara — steady hormone levels, lower clot vs some oral forms, good if you have nausea or GI issues. Topical gel: Estrogel (estradiol) — flexible dosing. Oral estrogen: Estrace (estradiol), Premarin (conjugated estrogens) — effective but oral estrogen has higher effect on clotting markers. Combined (for women with a uterus): Activella (estradiol + norethindrone), Prempro. Benefits vs risks: Most effective for hot flashes and night sweats, improves sleep. Risks include higher risk of blood clots, stroke (especially starting late), and a small increase in breast cancer risk with long‑term combined therapy. Generally recommended to use the lowest effective dose for the shortest needed time; individualized decision with your clinician. 2) Non‑hormonal medicines (if hormones are not appropriate or preferred) Antidepressants/SNRIs: Low‑dose paroxetine (Brisdelle 7.5 mg) — FDA approved for hot flashes. Important: paroxetine interferes with tamoxifen (if you are taking tamoxifen for breast cancer prevention/treatment, avoid). Venlafaxine (Effexor) and desvenlafaxine — often reduce hot flashes fairly quickly. Gabapentin (Neurontin) — useful for night sweats, taken at night in divided doses. Clonidine (Catapres) — modest benefit for hot flashes, may cause dry mouth, dizziness. For sleep specifically: low‑dose doxepin (Silenor) for sleep maintenance, trazodone commonly used off‑label, or short courses of zolpidem (Ambien) or eszopiclone (Lunesta) for insomnia — discuss dependency and side effects with your clinician. Notes: These meds help hot flashes or sleep but have side effects; choose based on other conditions and interactions. 3) Behavioral and sleep‑focused treatments (first‑line for insomnia) Cognitive Behavioral Therapy for Insomnia (CBT‑I) is a strongly evidence‑based treatment and often more durable than sleeping pills. Online CBT‑I programs: Sleepio and SHUTi have good evidence and are easy options. Ask for a referral to a CBT‑I trained clinician (many psychologists and sleep clinics offer this). Sleep hygiene and habits: cool, dark, consistent sleep schedule; avoid caffeine and alcohol near bedtime; limit evening screen time; keep bedroom cool and layered bedding. Bed/cooling products: consider a bedside fan and cooling mattress/pad such as ChiliSleep (formerly ChiliPad) or Eight Sleep if night sweats make falling/staying asleep hard. 4) Lifestyle & self‑care to reduce hot flashes and improve sleep Avoid triggers (hot drinks, spicy foods, alcohol, caffeine, hot rooms). Dress in layers, moisture‑wicking sleepwear, use a fan. Regular aerobic exercise and weight management can help overall well‑being (effects on hot flashes are variable). Mind‑body practices: mindfulness, paced respiration, and yoga may reduce symptom bother. 5) Complementary therapies (mixed evidence) Soy/isoflavone supplements — small benefit for some women. Black cohosh — mixed evidence and quality control concerns; discuss with clinician. Acupuncture — some women report improvement, evidence is limited. 6) When to see a specialist or pursue testing If hot flashes or insomnia severely impair daily life, or if you have risk factors (breast cancer, history of blood clots, stroke, heart disease), see your clinician for individualized care. If sleepiness, loud snoring, or witnessed apneas occur, consider a sleep clinic evaluation for sleep apnea (which can be worsened in menopause). Your doctor may want baseline screening (mammogram per guidelines) and to discuss cardiovascular and clotting risk before starting hormone therapy. Next steps I recommend Make an appointment with your primary care clinician or gynecologist and discuss: severity of hot flashes and sleep problems, past medical history (breast cancer, clotting disorders, migraines), and current medications (e.g., tamoxifen). If you want a low‑burden start, ask about transdermal estradiol (patch) versus a nonhormonal option like venlafaxine or gabapentin — pros/cons will depend on your medical history. If insomnia is your main issue, ask for CBT‑I referral or try a reputable online CBT‑I program (Sleepio or SHUTi). If helpful, I can draft questions to bring to your clinician or help you compare two specific treatments. If you want, tell me: do you have a history of breast cancer, clotting problems, heart disease, migraines, or are you on tamoxifen or other medications? I can give more specific guidance based on that.
Mentioned in position 11 of 18
Read full answer with sources →Google AISep 9, 2026, 15:23 UTC
I am 47 with hot flashes and terrible sleep. What are my treatment options?It sounds like you're in the thick of perimenopause or menopause, and those symptoms can be incredibly disruptive. The good news is there are many effective ways to manage hot flashes and improve sleep. Given your age and symptoms, it's really important to consult with your doctor or a gynecologist to discuss the best treatment plan for you, as they can assess your full health history and potential risks. Here's a breakdown of common treatment options: Hormone Therapy (HT or HRT) This is often considered the most effective treatment for hot flashes and night sweats, which can significantly improve sleep. What it is: Replaces the hormones (estrogen, sometimes progesterone) your body is no longer producing. Why it helps: Directly addresses the hormonal fluctuations causing hot flashes and often improves sleep, mood, and vaginal dryness. Types: Can be systemic (pills, patches, gels, sprays) or local (vaginal creams, rings, tablets for localized symptoms). Your doctor will discuss the pros and cons, especially regarding your medical history (e.g., risk of blood clots, certain cancers). Non-Hormonal Prescription Medications If hormone therapy isn't suitable or preferred, several prescription medications can help manage hot flashes and improve sleep. Antidepressants (SSRIs/SNRIs): Certain low-dose antidepressants can reduce hot flashes even in women who aren't depressed. Specific Brands: Brisdelle (paroxetine): This is the only non-hormonal medication specifically approved by the FDA for treating moderate to severe hot flashes. Effexor XR (venlafaxine): An SNRI that can be effective for hot flashes. Pristiq (desvenlafaxine): Another SNRI that can help with hot flashes. Why they help: They affect neurotransmitters in the brain that play a role in temperature regulation. Gabapentin: An anti-seizure medication that has been shown to reduce hot flashes and can also help with sleep. Specific Brand: Neurontin. Why it helps: It influences neurotransmitters involved in nerve activity and pain, and also has a sedative effect. Oxybutynin: A medication primarily used for overactive bladder, but it can also effectively reduce hot flashes. Specific Brand: Ditropan. Why it helps: It affects nerve signals that influence sweating and temperature regulation. Clonidine: A blood pressure medication that can sometimes be prescribed off-label for hot flashes, though it's generally less effective than other options. Specific Brand: Catapres. Why it helps: It affects blood vessels and nerve signals. Lifestyle Modifications & At-Home Strategies These are crucial for managing symptoms and improving overall well-being, especially sleep. Sleep Hygiene: Keep cool: Ensure your bedroom is cool. Consider cooling pillows or specialized mattress pads. Specific Brands/Services: ChiliSleep or Eight Sleep offer mattress pads with active cooling systems that can make a huge difference for night sweats. Regular schedule: Go to bed and wake up at the same time every day, even on weekends. Avoid triggers: Limit caffeine and alcohol, especially in the evening. Avoid heavy meals close to bedtime. Relaxation: Establish a relaxing bedtime routine (warm bath, reading, gentle stretching). Limit screens: Avoid phones, tablets, and computers an hour before bed. Stress Management: Stress can exacerbate both hot flashes and sleep problems. Practices: Yoga, meditation, deep breathing exercises. Specific Services: Apps like Calm or Headspace offer guided meditations and sleep stories. Diet & Exercise: Balanced diet: Focus on whole foods, fruits, vegetables. Some find avoiding spicy foods helps. Regular exercise: Can improve sleep and reduce stress, but avoid intense exercise too close to bedtime. Dress in layers: Wear breathable fabrics like cotton or moisture-wicking materials. Cognitive Behavioral Therapy for Insomnia (CBT-I): This is a highly effective, non-drug treatment for chronic insomnia. Why it helps: It teaches you to identify and change thoughts and behaviors that prevent you from sleeping well. Specific Services: You can find therapists specializing in CBT-I, or explore online programs like Sleepio (which can be covered by some insurance plans or employers). Complementary and Alternative Therapies (with caution) While many women explore these, scientific evidence for their effectiveness is often limited or mixed, and quality control can vary greatly. Always discuss these with your doctor, as they can interact with other medications. Phytoestrogens: Compounds found in plants that have estrogen-like effects. Sources: Soy products (tofu, tempeh), flaxseed. Why it helps: Some women find relief from mild hot flashes, but results vary. Herbal Supplements: Examples: Black cohosh, red clover, evening primrose oil. Caution: Efficacy is highly debated, and potential side effects or interactions are a concern. Always consult your doctor before taking any herbal supplements. Acupuncture: Some women report improvement in hot flashes and sleep with acupuncture. Remember, finding the right combination of treatments often involves some trial and error. Working closely with your healthcare provider will help you navigate your options safely and effectively to regain control over your symptoms and get better sleep.
Mentioned in position 6 of 11
Read full answer with sources →ChatGPTAug 30, 2026, 15:35 UTC
I am 47 with hot flashes and terrible sleep. What are my treatment options?Short answer: the most effective treatment for hot flashes (and for hot-flash–related sleep disruption) is systemic hormone therapy (estrogen ± a progestogen if you still have a uterus). If hormones aren’t appropriate or you prefer not to use them, several non‑hormonal prescription and behavioral options work well. Which is best for you depends on your health history (breast cancer, blood clots, stroke, smoking, migraine with aura, etc.). See a clinician to choose and monitor therapy. Below are practical options, with brand examples and why they might be used. 1) Lifestyle and behavioral first steps (try these immediately) Sleep hygiene: regular sleep schedule, limit evening caffeine/alcohol, cool bedroom, blackout curtains. Keep a cool sleeping environment and breathable sleepwear to reduce night sweats. Cognitive Behavioral Therapy for Insomnia (CBT‑I) — first-line for chronic insomnia and often improves sleep despite hot flashes. In‑person CBT‑I or digital programs such as Somryst (prescription) or Sleepio can help. Mindfulness/relaxation, paced breathing, and regular exercise (not right before bed). 2) Systemic hormone therapy — most effective for hot flashes and often restores sleep If you do not have contra‑indications, consider: Transdermal estradiol patch or gel (examples: Vivelle‑Dot, Climara, Estraderm, Divigel). Patches/gels: lower VTE risk than oral estrogen for many people. Oral estradiol (Estrace) or conjugated estrogens (Premarin). If you have a uterus you must add a progestogen to prevent endometrial hyperplasia — commonly micronized progesterone (Prometrium) or an inert intrauterine device (Mirena) in some cases. Why: fastest and most reliable relief of vasomotor symptoms and improves sleep. Risks vary with age, time since menopause, and personal risk factors (breast cancer, clotting, stroke). 3) Non‑hormonal prescription options (for people who can’t or prefer not to take hormones) Paroxetine 7.5 mg (Brisdelle) — the only nonhormonal FDA‑approved pill specifically for hot flashes. Note: interacts with tamoxifen; avoid if you’re on tamoxifen. Venlafaxine (Effexor) or desvenlafaxine — SNRIs that reduce hot flashes and can help sleep; often started low (e.g., 37.5 mg) and adjusted. Gabapentin (Neurontin) — particularly helpful for nighttime hot flashes and sleep; usually taken at bedtime (sometimes divided doses). Clonidine (Catapres) — modest benefit for some people; can have side effects like dry mouth and dizziness. Why: useful if hormones are contraindicated (e.g., active or recent breast cancer) or if you prefer nonhormonal therapy. 4) Treatments directed at sleep CBT‑I (above) is the preferred long‑term treatment for insomnia. Short‑term pharmacologic options for sleep maintenance: Low‑dose doxepin (Silenor) for sleep maintenance (prescription). Melatonin (0.5–3 mg) or extended-release melatonin can help circadian regulation for some people. Sedative hypnotics (zolpidem/Ambien, eszopiclone/Lunesta) may be used short‑term with caution (next‑day effects, dependence). If hot flashes are the major cause of awakenings, treating vasomotor symptoms often restores sleep. 5) Local vaginal symptoms (if present) Low‑dose vaginal estrogen (Estring ring, Vagifem tablets, Estrace cream) improves vaginal dryness and sexual symptoms with minimal systemic exposure. 6) Complementary/alternative options (evidence mixed) Soy isoflavones and black cohosh have inconsistent evidence; talk to your clinician before trying supplements. Acupuncture has mixed results; some people find benefit. Important safety/selection notes Hormone therapy is usually safest and most beneficial when started for symptomatic women younger than ~60 or within 10 years of menopause; risks and benefits should be individualized. If you have a history of breast cancer, active liver disease, prior venous thromboembolism, stroke, or uncontrolled cardiovascular disease, systemic hormones may not be appropriate. If you are on tamoxifen, avoid paroxetine and other strong CYP2D6 inhibitors (they reduce tamoxifen’s effectiveness). Discuss progestogen choice (micronized progesterone may have a different risk profile than synthetic progestins). What to do next See your primary care doctor, gynecologist, or a menopause specialist. Tell them about your hot flash frequency, severity, and how sleep is affected. Share any relevant history (breast cancer, blood clots, migraines with aura, smoking). The clinician may review risks, consider basic labs as needed, and discuss whether systemic hormone therapy is appropriate or recommend a specific nonhormonal drug or CBT‑I. If you want, I can help you: (a) prepare questions for your clinician, (b) compare specific hormone options and likely side effects for your situation, or (c) find CBT‑I/digital programs or local clinicians. Would you like to share any medical history (breast cancer, clotting disorder, medications, smoking) or preferences about hormones?
Mentioned in position 14 of 19
Read full answer with sources →ChatGPTAug 27, 2026, 21:12 UTC
What is the best non hormonal treatment for hot flashes?Short answer — there’s no single “best” non‑hormonal treatment for everyone, but the most effective and commonly used options are: Prescription medicines (most effective at reducing frequency/intensity) Brisdelle (paroxetine mesylate 7.5 mg): the only non‑hormonal FDA‑approved pill specifically for menopausal hot flashes. Works for many women and is taken at night. Note: interacts with tamoxifen (avoid if you’re on tamoxifen). Venlafaxine (Effexor XR): an SNRI with rapid benefit for hot flashes; often used when brisk symptom relief is needed. Preferred over paroxetine in women taking tamoxifen because it has less CYP2D6 inhibition. Gabapentin (Neurontin): particularly useful for nighttime hot flashes and sleep disturbance. Often started at a low dose at night and titrated. Clonidine (Catapres): provides modest reduction in hot flashes; can be an option if other drugs aren’t tolerated. Typical response time: days to a few weeks. Side effects vary (nausea, dry mouth, dizziness, sedation, sexual side effects, blood pressure effects) — discuss with your clinician. Non‑drug therapies (help with “bother” and quality of life; some reduce frequency) Cognitive behavioral therapy (CBT) for menopause: reduces the distress and interference from hot flashes and improves sleep. Look for a therapist experienced in menopause CBT or online programs/clinics offering CBT for hot flashes. Clinical hypnosis (Elkins‑style protocols): randomized trials show meaningful reductions in hot‑flash frequency and bother for some women. Mindfulness / MBSR and relaxation techniques: helpful for symptom bother and coping. Procedures / specialty options Stellate ganglion block (SGB): an interventional procedure that has produced dramatic improvement for some women in smaller trials/case series. Should be considered only after discussion with an interventional pain or anesthesia specialist because evidence is still emerging and there are procedural risks. Lifestyle and self‑management (important adjuncts) Cool environment, fans, layered clothing, moisture‑wicking fabrics, avoid triggers (hot drinks, spicy food, caffeine, alcohol, smoking), paced respiration/relaxation. Weight loss and exercise may help modestly; evidence for soy isoflavones and black cohosh is mixed and inconsistent — talk with your clinician before trying supplements. Which to try first? If you want a medication specifically approved for hot flashes: discuss Brisdelle with your clinician. If you want rapid, generally effective relief and are not on tamoxifen: venlafaxine is commonly used. If night sweats/sleep disturbance are the main problem: gabapentin often helps. If you prefer no medication or want to reduce “bother”: try CBT or clinical hypnosis with a trained provider. Important safety note: if you have a history of breast cancer, are on tamoxifen, have significant medical conditions, or take other medications, tell your clinician — some drugs (paroxetine, fluoxetine) interact with tamoxifen and other meds. If you’d like, tell me whether you prefer medication vs non‑drug approaches, whether you have breast cancer or take tamoxifen, and any other health issues — I can suggest a tailored first‑line option and what to discuss with your doctor.
Mentioned in position 4 of 4
Read full answer with sources →ChatGPTAug 20, 2026, 12:33 UTC
I am 47 with hot flashes and terrible sleep. What are my treatment options?Short answer: you have several effective options — lifestyle and behavioral changes (first-line for sleep), non-hormonal medicines, and menopausal hormone therapy (MHT) — and the best choice depends on how bad your hot flashes and sleep problems are, your medical history (breast cancer, clotting, heart disease, smoking), and whether you still have periods. See your clinician to individualize treatment. Below is a practical summary with specific brand names and why they’re used. What to try first (non‑drug / low‑risk) Cooling and sleep hygiene: breathable sheets, a fan, lower bedroom temperature, avoid spicy foods/alcohol/caffeine at night, layered clothing, limit evening fluids. These often reduce night sweats and help sleep. CBT for insomnia (CBT‑I): the most effective long‑term treatment for chronic insomnia. Digital programs with good evidence: Sleepio (online CBT‑I) and Somryst; many clinics offer in‑person CBT‑I. Cognitive behavioral therapy for menopause (CBT‑M) and mindfulness/relation techniques can reduce hot‑flash distress and improve sleep. Menopausal hormone therapy (MHT) Most effective treatment for moderate–severe hot flashes and often improves sleep. Choice depends on whether you have a uterus: If you do not have a uterus: systemic estrogen alone (transdermal or oral). Transdermal estradiol patches: Vivelle‑Dot, Climara, Alora — transdermal is often preferred if you have risk factors for blood clots or migraine because it has lower VTE risk than oral estrogen. Oral estradiol (Estrace) or conjugated estrogens (Premarin) are alternatives. If you still have a uterus: estrogen + progestogen to protect the endometrium. Micronized progesterone: Prometrium — often better tolerated and possibly safer for breast outcomes. Medroxyprogesterone acetate: Provera is commonly used. A levonorgestrel IUD (Mirena) delivers local progestin to protect the uterus and can be convenient. Typical decisions: MHT is usually recommended for symptomatic women under ~60 or within 10 years of menopause, but must be individualized. Important cautions: avoid or carefully weigh MHT with a history of breast cancer, active liver disease, or recent venous thromboembolism or stroke. Non‑hormonal prescription options (when hormones are not appropriate or not desired) SNRIs/SSRIs reduce hot flashes and may help sleep slightly: Venlafaxine (Effexor) — commonly used and effective. Desvenlafaxine (Pristiq). Paroxetine (Paxil) works but avoid if you’re taking tamoxifen (drug interaction). Gabapentin (Neurontin) — effective for night sweats and can help nighttime sleep when taken at bedtime (commonly 300 mg at night, may be increased under medical supervision). Clonidine (Catapres) — modest benefit, sometimes used if others not tolerated. For severe insomnia short‑term: zolpidem (Ambien), eszopiclone (Lunesta) or ramelteon (Rozerem) — use cautiously and generally short term; consider low‑dose doxepin (Silenor) for sleep maintenance. Vaginal/local treatments If vaginal dryness or urinary symptoms bother you (can wake you at night), vaginal estrogen (creams/ovules/rings) treats local symptoms with very low systemic absorption: Estrace cream or the Estring vaginal ring are options. Local vaginal products are safe for many women, including some breast cancer survivors — discuss with your oncologist. Over‑the‑counter supplements and alternatives Melatonin (OTC brands like Natrol) may modestly help sleep; start low (0.5–3 mg). Black cohosh and soy have mixed evidence; some women try them but benefits are inconsistent and products are not tightly regulated. Beware “bioidentical” compounded hormones: FDA‑approved products are preferable because compounded formulations are less regulated and safety/effectiveness are uncertain. How to decide and next steps See your primary care doctor, gynecologist, or a menopause specialist. They will: Review your medical history (breast cancer, clotting, heart disease), current medications, and smoking status. Determine if you’re a candidate for MHT or better suited to non‑hormonal options. Offer CBT‑I referral or digital programs (Sleepio), or start medication trials (e.g., venlafaxine, gabapentin, transdermal estrogen). If sleep disruption is severe or there are symptoms of another sleep disorder (snoring, daytime sleepiness, restless legs), consider referral to a sleep clinic. If you want, tell me: whether you still have periods, any major medical history (breast cancer, blood clots, heart disease), and whether you prefer to avoid hormones. I can then suggest a tailored plan and what to discuss with your clinician.
Mentioned in position 15 of 21
Read full answer with sources →