NEW YORK (WCBS 880) — Mayor Michael Bloomberg is helping the New York City Blood Center where donations have been in short supply this winter season.

The billionaire mayor filled out the paperwork took off his left cufflink, rolled up his sleeve and relaxed on a shayz lounge before donating a pint of blood.

READ MORE: Police Say Connecticut Man Attacked Ambulance Facilities With Molotov Cocktails

Mayor Michael Bloomberg explains the benefits of donating blood to WCBS 880’s Rich Lamb

“It saves lives, and it is literally, totally painless. And you get a chance to sit and relax and talk one on one with esteemed members of the fourth estate,” Bloomberg said.

READ MORE: 1 Injured In Manhole Fire In Midtown; FDNY, Utility Crews On Scene

The mayor said it doesn’t take much to make a difference, all you have to do is “just sit there.”

“You never know, someday you may need an operation or an emergency and if they don’t have blood, you can’t have the oepration and you could die,” Bloomberg said.

After donating, Bloomberg was rewarded with a pack of Lorna Doones, some Oreos and a couple bottles of water.

MORE NEWS: Police: 2 Men Wanted In Violent Queens Home Invasion Stole $3,000 From Woman At Gunpoint

Roughly 20 million people depend on blood center donations in New York City, Long Island, the Hudson Vally, and New Jersey.