Myths About Human Health. On October 18th, Doctor’s Day is celebrated, an essential professional for the care of life in all its stages of development. In celebration of the date and in honor of these professionals who play such an important role in society, we have prepared a list of 10 statements that you have probably heard about different aspects of human health, but which have already been proven by medical studies to be false.
10 Myths About Human Health
- We should drink at least 2 liters of water a day
Drinking fluids is essential for maintaining adequate hydration of the body, but there is no scientific study that points to a specific amount of water daily. In fact, the amount of water that each individual needs to ingest throughout the day depends on several factors, such as the size of their body surface, the ambient temperature, the degree of physical activity, the type of clothing the individual wears throughout the day. of the day, the existence or not of diseases, daily salt consumption, etc.
- Cold causes flu
What causes the disease is the influenza virus, not the drop in temperature. Cold can harm the respiratory defense system, making it more vulnerable to the action of microorganisms. In addition, the days of lower temperatures favor the maintenance of droplets in the air for a longer time, as well as pollutants, which can affect the airways.
- People with cardiac arrhythmia cannot exercise
It all depends on the arrhythmia, the treatment and the physical exercise to be practiced. There are arrhythmias that have no impact on the performance of the heart, but it is always very important to carry out an individualized assessment before practicing any sport, especially for people who have some type of heart problem.
- Men have more heart attacks than women
According to the Ministry of Health, cardiovascular diseases are the main cause of mortality among women and, in addition, they also have a 50% probability of a greater heart attack compared to men. This is due to several factors, one of which is the caliber of women’s arteries, where atheromatous plaques tend to close more, making the obstruction more severe, making it more prone to arterial occlusions.
- Contraceptive fattening
There is no scientific evidence to support substantial weight gain in women taking birth control pills. No work has been able to prove a difference greater than 0.5 kg in weight gain between women who take pills and those who don’t. The result does not depend on the type and dosage of hormones.
- Coffee causes heart problems
According to the Brazilian Society of Cardiology (SBC), caffeine can be consumed, as long as it is in moderation. Coffee has important antioxidant properties capable of preserving blood vessels, inhibiting the harmful action of free radicals on artery walls. In addition, research carried out in the United States (Framingham Study) showed no relationship between coffee consumption and heart or coronary diseases, such as angina pectoris and myocardial infarction.
- Eating carrots improves eyesight
Carrots are rich in vitamin A, and deficiency of this vitamin is one of the causes of blindness. However, people who eat normally, are not malnourished and have normal levels of vitamin A do not get any extra benefit in visual performance from eating more carrots.
- Rheumatism is a disease that affects only elderly people
There are several rheumatic diseases in teenagers and young adults. Rheumatism is a set of more than 100 different diseases that have similar symptoms – such as joint pain and swelling – but develop differently.
- Stress causes stomach ulcer
Almost all gastric ulcers are caused by the H.pylori bacteria or by frequent use of anti-inflammatories. Stress can cause what we call functional dyspepsia, which are symptoms of burning stomach and heartburn, which resemble the symptoms of gastritis and ulcers.
- Coffee improves alcohol intoxication
As a stimulant, coffee is often used to improve the symptoms of binge drinking and hangovers. It doesn’t work, and it can make a hangover worse, since caffeine is a diuretic and can increase dehydration, which is one of the causes of hangover malaise.