As a true friend, I would never discourage someone else for wanting to explore a sexual route, but since still in high school I believe it is not worth it. I would ask my friend why he or she is having thoughts about this. Is it pressure of wanting to fit in? Or just simply curiosity? I would tell them to wait until they have found someone they love or have deep emotions for. Being in high school should be about finding your passions and hobbies. Focusing on yourself and not the need to please others. High school only comes for a short period, so live it while you can. Live your age. Abstinence is okay and it shouldn't be discourage. A personal choice in sex should never be discourage.
Because they are responsible for controlling genetic details or information which is in our DNA .
Answer: Your answer is definitely C: 100 bpm !!
Sharing needles can along with many other ways.
Shrinkage of neurons, lower numbers of synapses, reduced length and complexity of axons,and reduced tree-like branching in dendrites
