Yes it is possible for some humans to live up to 100 years and more.
There have been some humans who lived to 115 years old and some have lived as long as 200 years in some countries.
It's very rare for a human to make it to 100 years old and beyond but if you stay healthy and get plenty of exercise have regular checkups from the doctor and eat healthy as well then you could increase your chances of living to at least 100 years old.
There are several 100 year old people living today so it's possible.
Some people die at 70 and some live until 90 and some live to be 100 and some live to be 110 and even 115 years old.