Outdated Medical Advice
68 entries on file
Eating eggs significantly raises cholesterol and heart disease risk
Dietary cholesterol has minimal impact on blood cholesterol for most people
Cigarettes are safe and doctors recommend them
Cigarettes are highly addictive and cause cancer; doctors now universally recommend against smoking
You Need Eight Glasses of Water a Day
There is no scientific basis for the number; it appears to be a 1945 footnote that nobody followed up on
Vaccines cause autism
Fraudulent study retracted; millions of studies confirm vaccine safety
Gluten-Free Is Healthier for Everyone
If you don't have coeliac disease or diagnosed sensitivity, gluten-free swaps usually have less fibre and more sugar
Margarine is a healthier choice than butter
Butter contains more natural fats; early margarines had harmful trans fats
Lobotomy is an effective cure for mental illness
Lobotomies caused severe permanent brain damage and were abandoned
Thalidomide is a safe and effective morning sickness treatment for pregnant women
Thalidomide causes severe birth defects; its approval is considered a major pharmaceutical tragedy
Tilt your head back to stop a nosebleed
Head tilting sends blood down the throat; proper first aid is leaning forward
Breakfast is the most important meal of the day
Meal timing's importance varies by individual; total daily nutrition matters more
Static stretching before exercise prevents muscle injuries
Dynamic warm-up is superior; static stretching before exercise may reduce performance
BMI is a definitive measure of health status
BMI ignores muscle mass, bone density, and overall fitness; it's one of many health indicators
Cholesterol in food directly raises cholesterol in your blood
Body regulates cholesterol; dietary cholesterol has minimal impact for most people
Bed rest is the best treatment for back pain
Bed rest can worsen back pain; gentle movement and physical therapy are more effective
Eating sugar directly causes diabetes
Type 2 diabetes is caused by insulin resistance from multiple factors including genetics and lifestyle
Detox diets and cleanses remove toxins and improve health
Liver and kidneys naturally detoxify; commercial cleanses have no proven benefits
Vitamin C Stops Colds
Modest, slow, and only if you take it daily before you ever catch one
Blood is blue inside your body and red when exposed to air
Blood is always red; oxygen changes shade but not base colour
Cracking knuckles does not cause arthritis
Cavitation sound is harmless; long-term studies show no arthritis link
Sitting too close to TV ruins your eyesight
Causes temporary eye strain; no permanent damage occurs
Vaccines Contain Dangerous Levels of Mercury (Thimerosal)
Thimerosal was removed from most vaccines, but remaining traces pose no health risk
Adderall Is Just Strong Caffeine
It's a Schedule II amphetamine; coffee is a different drug at a different scale of effect and risk
BMI Is an Accurate Measure of Fitness
It was invented in 1832 by a Belgian astronomer to study the average man, not assess any individual one
Antibiotics Will Cure Your Cold
Colds are viral, and antibiotics do nothing to viruses
Bloodletting cures disease by balancing bodily humors
Bloodletting caused weakness and infection; modern medicine uses blood tests instead
Teething directly causes high fevers in babies
Teething causes mild temperature elevation; high fevers indicate infection, not teething
Ice baths after exercise speed recovery and prevent soreness
Ice baths may impair strength gains and muscle adaptation
Antibiotics effectively treat viral infections like colds and flu
Antibiotics only kill bacteria; viral infections require supportive care
MSG is a dangerous food additive that causes serious health problems
MSG is safe in normal amounts; 'Chinese Restaurant Syndrome' was never proven
Most people are sensitive to gluten or have gluten intolerance
Only about 1% have celiac disease; non-celiac gluten sensitivity is rare and debated
All carbohydrates are unhealthy and cause weight gain
Refined carbs differ from whole carbs; carbs are essential for brain and body function
Organic food is always healthier than conventional
Nutrition similar; main benefit is reduced pesticide residues
Eating carbs at night makes you gain more weight
Timing has minimal effect; total calories matter
Microwaves produce dangerous radiation in food
Non-ionizing radiation is safe; properly sealed ovens safe
All plastic containers leach dangerous chemicals
Food-grade plastics are safe at room temperature
Wet hair causes colds or pneumonia
Viruses cause colds, not temperature or wet hair
Hydrogen peroxide is best for cleaning wounds
Damages healthy tissue; saline or water is better
Poinsettias are highly toxic to humans
Mildly toxic at worst; causes minor symptoms if ingested
Peanut allergies are caused by early over-introduction to children
Early introduction may actually reduce allergy risk
Some people are 'double-jointed' with extra joints
Flexibility is from loose ligaments, not extra joints
Caffeine dehydrates you significantly
Caffeine causes mild diuretic effect; hydration impact is minimal
Turkey contains special amino acid that makes you sleepy
Tryptophan is common in many foods; post-meal sleepiness from carbs and full stomach
Staring at the sun causes immediate blindness
Sun exposure causes gradual retinal damage and photochemical burns
Red wine is heart-healthy due to resveratrol
Resveratrol amounts in wine are tiny; any benefit is offset by alcohol risks
Vaccines contain dangerous metals like mercury
Mercury levels are trace; removed from most vaccines decades ago
Artificial sweeteners like aspartame cause cancer
Extensive safety testing shows acceptable safety at typical intake levels
Brain freeze from ice cream can cause permanent damage
Brain freeze is temporary pain; no damage occurs
Drinking Milk Soothes a Stomach Ulcer
Milk briefly calms, then triggers more acid; ulcers are mostly bacterial
If a Snake Bites You, Cut the Wound and Suck the Venom Out
It removes almost no venom and can make things worse; stay still and get help
Sugar Feeds Cancer, So Cutting Sugar Starves the Tumour
Every cell uses glucose; no diet selectively starves cancer of it
Trepanning (skull drilling) releases evil spirits causing mental illness
Trepanning was dangerous and ineffective; mental illness has biological causes
Mercury is a safe and effective medical treatment
Mercury is a toxic poison; historical mercury treatments caused severe harm
Alkaline water is healthier than regular water
Body pH is tightly regulated; alkaline water has no proven health benefits
Spinach decimal point error made it seem super iron-rich
Decimal point story is apocryphal legend with no evidence
All salt should be eliminated entirely
Sodium is essential; excess is problematic
Everyone should take daily aspirin for heart health
Aspirin only benefits high-risk groups; increases bleeding risk
You can burn your tongue more easily than other mouth tissues
All mouth tissues have similar heat sensitivity
Penicillin is a miracle cure with no side effects
Penicillin is highly effective but carries allergy risks
Drinking water immediately after eating harms digestion
Water does not interfere with normal digestion
Burning your tongue temporarily destroys taste buds
Taste returns within days; taste buds are replaced quickly
Cooking in aluminum foil causes Alzheimer's disease
Dietary aluminum from foil is minimal; no proven Alzheimer's link
Sour candy dissolves your teeth completely
Acidic candies damage enamel but don't dissolve teeth
Heartburn means your stomach acid is too strong
Heartburn usually results from sphincter weakness or timing, not acid strength
Cold sores on lips mean you have sexually transmitted herpes
Cold sores (HSV-1) are separate from genital herpes (HSV-2)
If Someone Swallows Poison, Make Them Throw Up
Inducing vomiting can cause more harm; call poison control first
Fat-soluble vitamins are safe in unlimited amounts
Vitamins A, D, E, K can accumulate and cause toxicity at high doses
Humans are 75% water instead of 60%
Body water percentage varies by age, fat content, and individual
The DPT Vaccine Causes Brain Damage
1980s panic based on anecdotal reports; rigorous studies found no causal link