A good diet, exercise and sufficient sleeps helps for proper brain function
The answer to his question means the mans key is his penis and a girls hole is his vagina so that means they are having sex
This is posted in the health section by the way;
The answer:

So -5/53 Assuming you are substituting in 8 for x.
Answer: Babies are made when special cells called sperm (produced by men) combine with cells called ova (produced by women) in a process called conception. Each of these cells is produced by a process called meiosis which makes cells containing half the information of the parent.