Como se debe manejar la incertidumbre?

Blank is a disease in which the body is unable to make eunough of the hormone insulin to breakdown sugar into energy

Protein deficiency can result in a malfunctioning metabolism, a weak or irregular immune system, and possible blindness and deafness a rapid period of weight loss a significant and rapid weight gain damage to connective tissue and bones

How can participating in a water activity by yourself could be dangerous even if it is a simple activity that you frequently do.