Despite two big studies showing a clear link between higher coffee consumption and increased lifespans, it would be a big mistake to assume that more coffee leads to longevity. Since these studies were purely observational, there’s no evidence to say that drinking more coffee will cause someone to live longer. It’s possible that those who drink more coffee are simply healthier due to some factor that the researchers didn’t consider and control for.
In other words, don’t start increasing your daily coffee intake just yet. If you can’t handle more than a cup a day or hardly any caffeine at all without getting jittery and anxious, then your best bet would be to listen to your body to keep it healthy.
If you do, however, want to experiment with increasing your coffee intake and are in good health to do so, make sure to do it safely. While caffeine content varies depending on the type of coffee and size of mug you use, you can estimate that four 8-ounce cups of coffee will put you at the average limit of 400 milligrams of caffeine.
According to WebMD, a moderate amount of caffeine, which is about 300 mg, or three cups of coffee, is perfectly safe for most healthy people. If you have high blood pressure, are an older adult, or are sensitive to stimulants like caffeine, make sure you talk to your doctor before increasing your coffee intake.
SOURCE : www.care2.com
