New research reveals that severe forms of psoriasis may increase the risk of heart attacks.
Researchers at the University of Pennsylvania studied more than 680 thousand patients from Britain.
People in their 40's with severe psoriasis were more than twice as likely to suffer a coronary arrest.
The link may be the inflammation.
It plays a role in both heart disease and psoriasis.
Mild psoriasis raised the risk by 20 percent.
However, the study's co-author says people with mild psoriasis on their elbows and knees shouldn't worry.