What are allergies? Is it true that they are psychological reactions?

Allergies are sicknesses and a psychological reaction is the response in the face of sickness. One could say that the psychology could make people more prone to sickness, but it is not a direct cause.

Q: Is it good to have a big appetite? I eat a lot and I feel I might be obese all my life.

A: In the first place, an appetite plays an important part in our daily nourishment, but it is not the only factor in charge of regulating whether you will become obese or not. We need to define clearly three concepts: hunger, appetite, and sensation of fullness.

Q: Do you inherit everything from your parents? What does gene mean?

A: At the moment of fertilization there is a transmission of genetic codes of both parents and with this, the genetic endowment is well defined.

A person has 46 chromosomes, but the egg and the sperm only have 23 each. When they join, they add up to 46 and in an equal proportion, you have 23 from each parent.

Q: My mom says you should not swim after meals. Is that true?

A: When we decide to carry out some sport after ingesting a great quantity of food, we might encounter a gastrointestinal problem. Swimming under certain circumstances such as having been out in the sun and then going into the water could sauce a Hydrocusion syndrome which is the loss of consciousness caused by the difference between the body temperature and that of the water, especially when the water is very cold.

Q: I want to go on a diet to lose weight but there are people who tell me to be careful. Are pills and liquids any good? What is your advice?