Psoriasis can weaken the function of good cholesterol in the body, according to new research.

The inflammation caused by psoriasis may negatively change the composition of the lipoprotein (HDL), which is what forms good cholesterol.

[quote] This new research, carried out at the University of Pennsylvania, may be the first preliminary findings that explain why psoriasis sufferers are at a higher risk of heart attacks and stroke[/quote]

While the study uncovered an association between psoriasis and HDL function, it did not prove a cause-and-effect relationship, and the researchers say more study is needed to confirm the link.