Because humans have five senses: feel, see, taste, hear, and smell. When you step on a nail you basically going to feel it and you brain can sense that and it can trigger nerves which can cause pain.
What do you mean? like planning lessons or is that just the question?
Relationships that involve sexual intercourse are filled with physical, emotional, and psychological risks. Abstinence provides teenagers the opportunity to avoid those risks. Individuals who abstain from sexual intercourse during their teenage years tend to have fewer sexual partners in their future.
To prevent the risk of injury from slips, trips and falls due to clutter, you should organize storage areas and secure cords and cables.
Both of the things would need to be safely maintained to prevent injuries. Storage areas would need to be kept clean and tidy so that no potential hazard is created, and this can occur if the storage area is disorganized. Cords and cables would need to be secure in order to not trip over them. They should be kept out of the way and mainly placed together in an area where it's less likely to cause an accident.
