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.
Answer: Well the answer is below
Explanation:
Well when you sleep it gives you energy to which you need in you life and it connects you to your dream whether its good or bad. Dreams are meant for you express how you feel and what you think because dreams are what you make it. Sleeping is so good for you. I love to sleep and it's because you want a healthy jump start to your day whether it's tomorrow, today, or yesterday!! Dreams aren't meant to criticize you or stabilize you but to help you see things in a different perspective whether it's the truth or not.
Sleeping is what we call as hibernating if u didn't know that and we need 8-10 hours of sleep per day. So your question how does sleep and what you dream affect your life, there isn't an answer to it because what you dream affects your sleep. If the dream is good then you will fall asleep faster but is the dream is bad like a nightmare than you won't fall asleep as fast as the good dream. So a dream is what you make it to be
Thanks I really hope this answers your question
Physical changes such as wrinkles some say you shrink when you get into your elderly years. But it gets harder for you to loose weight your metabolism slows down, you may get bone problems like arthritis. you dont have as much energy. Its harder for you to get around and also memory loss. Its much easier for you to become diagnosed with any dangerous diseases which is why make sure you eat healthy and exercise !
