Effects · health adverse
Tachycardia
Increase in heart rate above normal (usually >100 beats per minute at rest). May be felt as strong palpitations, cause discomfort, shortness of breath, or dizziness.
- Supplements
- 33
- Practices
- 40
- Habits
- 31
How we rate evidence
Probability — how likely the effect is to show up
- Very high
- High
- Medium
- Low
Evidence — where the data comes from
- Scientific Meta-analyses and randomized trials
- Clinical Clinical trials and practice
- Animal research Animal studies
- People reports User reports and anecdotes
- Theoretical Mechanistic reasoning, not yet tested
Reported as a side effect of (104)
Probability Very high 9 High 22 Medium 15 Low 58
Evidence Clinical 42 People reports 28 Theoretical 34
- 9-Me-BC Supplements LowPeople reports
- Adrafinil Supplements LowClinical
- Amanita Muscaria Supplements LowPeople reports
- Bromantane Supplements LowPeople reports
- Caffeine Supplements MediumTheoretical
- Cerebrolysin Supplements LowClinical
- Coluracetam Supplements LowPeople reports
- Eleuthero Supplements LowPeople reports
- Ethanol (alcohol) Supplements MediumTheoretical
- Guarana Supplements LowTheoretical
- Horny Goat Weed Supplements LowPeople reports
- IDRA-21 Supplements LowPeople reports
- Methylene Blue Supplements LowPeople reports
- Modafinil Supplements LowTheoretical
- Mucuna Pruriens (Velvet Bean) Supplements LowPeople reports
- N-Acetyl-L-Tyrosine (NALT) Supplements LowTheoretical
- Nicotine Supplements LowTheoretical
- Oxiracetam Supplements LowPeople reports
- Panax Ginseng Supplements LowClinical
- Phenylalanine Supplements LowPeople reports
- Phenylpiracetam (Phenotropil) Supplements LowPeople reports
- Pregnenolone Supplements LowPeople reports
- Selegiline Supplements LowClinical
- Semax Supplements LowPeople reports
- Serine Supplements LowPeople reports
- Shilajit Supplements LowPeople reports
- Sulbutiamine Supplements LowPeople reports
- Sunifiram Supplements LowPeople reports
- Theobromine Supplements LowClinical
- Tyrosine Supplements LowPeople reports
- Unifiram Supplements LowPeople reports
- Vinpocetine Supplements LowPeople reports
- Yohimbine Supplements HighTheoretical
- 5Rhythms Dance Practices LowClinical
- Alternate Day Fasting Practices LowPeople reports
- Ballet Fitness Practices LowClinical
- Belly Dance Practices LowClinical
- Bhastrika Pranayama Practices HighTheoretical
- Bikram Yoga Practices HighTheoretical
- Cognitive Training / Brain Games Practices LowPeople reports
- Calisthenics Practices Very highTheoretical
- Cold Shower Practices HighTheoretical
- Cold Water Face Plunge Practices HighTheoretical
- Contemporary Dance Practices MediumClinical
- Contrast Shower Practices Very highTheoretical
- Cryotherapy Chamber / Whole Body Cryotherapy Practices MediumTheoretical
- Dance/Movement Therapy Practices HighTheoretical
- Ecstatic Dance Practices HighClinical
- Finnish Sauna Practices Very highTheoretical
- Fasting Mimicking Diet Practices LowClinical
- Functional Training Practices LowClinical
- Herbal Steam Bath Practices HighTheoretical
- Herbalism / Phytotherapy Practices LowClinical
- High-Intensity Interval Training (HIIT) Practices LowPeople reports
- Holotropic Breathwork Practices HighTheoretical
- Hot Bath Practices HighTheoretical
- Ice Bath / Cold Plunge Practices Very highTheoretical
- Infrared Sauna Practices HighTheoretical
- Isochronic Tones Practices LowPeople reports
- Jivamukti Yoga Practices MediumClinical
- Running / Jogging Practices LowClinical
- Kettlebell Training Practices LowClinical
- Kriya Yoga Practices LowTheoretical
- Kundalini Yoga Practices HighTheoretical
- Prenatal Yoga Practices LowPeople reports
- Raja Yoga Practices LowClinical
- Rebirthing Breathwork Practices MediumClinical
- Indoor Rowing Practices LowClinical
- Steam Room / Hammam Practices Very highTheoretical
- Strength Training Practices LowClinical
- Trail Running Practices LowClinical
- Prolonged Water Fasting Practices LowPeople reports
- Wim Hof Method Breathing Practices HighTheoretical
- Alcohol Consumption Habits MediumClinical
- Binge Eating Episodes Habits MediumClinical
- Suppressing Emotions Habits HighClinical
- Breathwork Habits MediumTheoretical
- Cardiovascular Exercise Habits LowClinical
- Cigarette Smoking Habits Very highTheoretical
- Cold Exposure Habits Very highClinical
- People-Pleasing to Your Own Detriment Habits MediumTheoretical
- Doomscrolling (Consuming Negative News) Habits LowClinical
- Drug Use Habits HighClinical
- Energy Drink Consumption Habits HighTheoretical
- Engaging in Conflict Habits LowClinical
- Excessive Caffeine Intake Habits HighClinical
- Excessive Sugar Consumption Habits LowClinical
- Excessive Worrying Habits Very highClinical
- Heat Exposure (Sauna/Steam) Habits LowClinical
- Hot Salt Baths Habits HighTheoretical
- Inhalant Abuse Habits HighTheoretical
- Insufficient Sleep Habits LowClinical
- Intermittent Fasting Habits LowPeople reports
- Irregular Sleep-Wake Schedule Habits MediumTheoretical
- Caffeine Consumption Late in the Day Habits MediumClinical
- Maladaptive Perfectionism Habits HighClinical
- Nature Walks Habits LowClinical
- Engaging in Negative Self-Talk Habits MediumClinical
- Over-the-Counter Drug Abuse Habits MediumClinical
- Reckless Driving Habits Very highTheoretical
- Recreational Sports Habits LowClinical
- Using Smokeless Tobacco Habits HighClinical
- Vaping or E-Cigarette Use Habits HighTheoretical
- Working Excessive Hours Habits MediumClinical
Mitigated by (3)
- Ethanol (alcohol) Supplements Theoretical
- Phenibut Supplements People reports
- Propranolol Supplements Theoretical