Not
all coffee is created equal. Studies show that:
-
Unfiltered
coffee
(like French press or boiled coffee) may cause small rises in
cholesterol. -
Genetics
matter:
Some people carry a common gene variant that slows caffeine
metabolism. For them, drinking two or more cups a day may increase
heart disease risk. -
Too
much caffeine—more
than 4 cups of instant or 2 strong espresso coffees daily—can
lead to restlessness, anxiety, poor sleep, irritability, or
headaches.
