You won't need any equipment or a doctor's visit to check your health with these simple tests.
You can spend them at home and they won't take more than a minute.
These simple ways will help you better understand your body and not miss the first signs that some kind of failure has occurred.

Parkinson
1. Raise your hand palm down and place a sheet of paper on the back.

So you can notice any abnormal tremor. Having a slight tremor is normal, especially if you hold your hand long enough. However, a stronger tremor in the arm can indicate elevated caffeine levels, low blood sugar, anxiety, and even early-stage Parkinson's disease.
Atrial fibrillation
2. Measure your pulse with a stopwatch and then tap each beat with your foot.

Once you have determined your pulse in a calm state, find the pulse point on your neck or arm and tap your foot every beat. If you notice that you are knocking your foot unevenly, you may have atrial fibrillation or atrial fibrillation.
Acidity of the stomach
3. Stir 1 teaspoon of baking soda in a small glass of water and drink on an empty stomach.

If within 5 minutes after you drank this mixture, you will have a noble belching, the level of acidity in your stomach is normal and healthy. If not, then probably the acid balance is upset, which means that you are not absorbing enough nutrients from food.
Mobility and longevity
4. Stand in front of the mirror, cross your legs and sit cross-legged on the floor without the help of your hands.

Это тест на мышечную силу, равновесие, гибкость и подвижность. Если вы можете сесть в это положение без помощи рук, ваши мышцы и связки в хорошей форме. Исследование показало, что люди старше 50-ти лет, которые смогли выполнить этот тест, жили дольше.
Потеря зрения
5. Встаньте перед дверным проемом или большой оконной рамой и закройте левый глаз, глядя на раму в течение 30-ти секунд. Повторите со вторым глазом.

Если вы не видите горизонтальные и вертикальные линии рамы параллельными, то есть если они искажены, то возможно, у вас ранняя стадия макулодистрофии, которая может привести к потере зрения.
Заболевания артерий
6. Лягте на кровать и поднимите ноги под углом 45 градусов на подушки. Подержите их в течение минуты, а затем свесьте с кровати под прямым углом.

This is a test for problems with the arteries. If you feel numb or your legs have become pale and have not returned to normal within a minute, it could be a sign of peripheral artery disease that can lead to pressure problems, heart attack, and stroke.
Dementia
7. Draw from memory the dial of the clock with hands indicating the time 3:40.

Inability to draw a watch face from memory can be an early sign of dementia
Bad breath
8. Scrute the back of the tongue with a spoon, place the spoon in a bag and place under a bright light source for 1 minute, and then smell.

This is a bad breath test. A healthy tongue should be clean, but if there is a thick layer of plaque on the tongue, then this can be a sign of problems with the respiratory system, liver, kidneys, hormones or intestines.
A fruity smell may indicate ketoacidosis (when the body burns fats for energy and can be a sign of diabetes), the smell of ammonia may indicate kidney problems, and other odors may indicate stomach or lung problems. However, the study shows that 90 percent of bad breath cases are associated with periodontitis, infected tonsils, tooth decay or cracked fillings.