The frequency of eating, intensity of calories contained in foods, times a day that you eat, and types of food you eat.
If you're asking about how old it is considered to be pregnant then if you get pregnant at age 25, your risk of having a baby with with Down Syndrome, for example, is about 1 in 1250, according to the National Institutes of Health. At age 40, the risk is 1 and 100. if you'll be 35 or older on your due date, you'll be offered genetic counseling. I hope I helped.
A natural process of self-destruction in certain cells, such as epithelial cells and erythrocytes, that are genetically programmed to have a limited life span or are damaged. Apoptosis can be induced either by a stimulus, such as irradiation or toxic drugs, or by removal of a repressor agent. The cells disintegrate into membrane-bound particles that are then eliminated by phagocytosis. Also called programmed cell death