Whereas LDL brings cholesterol to the artery wall, where it collects in heart attack-causing plaques, HDL carts it away.

FORBES

Investors, take heart: one of the all-time Bad Boys of Wall Street, mean and greedy Gordon Gekko, has turned over a new leaf.

FORBES: The New Gordon Gekko: Greed is Bad

For those who believe excessive risk-taking on Wall Street was at the heart of the global financial crisis, sweeping reform on a scale not seen in 80 years was the necessary remedy to insure that a similar financial meltdown does not occur any time soon.

FORBES: Dodd-Frank: Where Is The Love?

The author of the long-running Up and Down Wall Street column died Thursday of a heart attack, according to Sara Blask, a spokeswoman for Dow Jones, which publishes Barron's.

WSJ: Longtime Barron's writer Alan Abelson dies at 87

Merck (nyse: MRK - news - people ) is unveiling new experimental medicines to treat osteoporosis, heart disease and obesity, trying to convince Wall Street that it is emerging from the invention drought that has afflicted the entire drug business.

FORBES: Merck Stands Tall