I usually drink a coffee a day, I also like black tea and green tea Wondering how much do you think is bad for your health and if I should change the habit?

I was told by a health professional that SCUBA divers shouldn't drink coffee or tea at least 12 hours before a dive. I've never heard of this before and I've been diving for 30 years.

We have football summer camp every day starting at 8AM and i hate waking up that early.
Should i drink a cup of coffee and when should i drink it?
and is this bad or good for my performance and health?

Im 14 and it gets me awake so i can study harder in school because im taking some intense classes, is it bad for my health? I drink about half a cup a day when i wake up.

I want to know what is better for your health coffee or energy drink, or perhaps something else that gives you energy and is better than both of them, I know they are both bad if used to much, and please tell me why your pick is better for the health, and if you could tell me the brand you thing is best. Thank you

I am a 12 year old an drink coffee occasionally like once or twice a week I this bad? I love coffee and I was wondering how many cups of coffee I would you recommend I can drink and not damage my health like "stop growing" I heard that can happen whats a okay amount I can drink per month?

How many cups of coffee do you drink per day?
is the amount of the coffee has any side effect upon your mood and health?
thanks a lot in advance

I have read lot of negative things about caffeine. But I have seen some people drink 5 cups of coffee and NOTHING happens to them. I talked to one person and he said he has been drinking 5 cups coffee a day for the past 13 years and nothing bad happened. He says that in fact, his health improved. How come?
he drinks dark roast

Was it 1 or coffees a day, or several? How easy did you find it to conceive? Were you actually trying or did it just happen? How was your health otherwise i.e. was caffeine your only vice or did you smoke, take alcohol, low fruits/vegetables in your diet, etc? Thanks.

I am 15 years old, about to be 16. 5'11" and 140 pounds, so a tall, skinny guy. I usually drink a mug (about 12 ounces) of coffee every morning, is this bad for my health in any way?