In two thousand six, heart disease killed more than six hundred thirty thousand Americans.

VOA: special.2010.06.08

Some of the mummies had signs of atherosclerosis in the inner walls of up to six arteries, the passages that lead blood away from the heart.

VOA: special.2009.12.15

She had a heart operation in nineteen eighty-six.

VOA: special.2010.07.04

The average clot size of those who smoked a cigarette in the six hours before their heart attack was 23 square millimetres.

BBC: Smoking

Assigned with his brother Maurice to the Sonderkommando, Shlomo Venezia survived six months at the heart of the death machine set up by the Nazis to destroy the Jewish people.

UNESCO: MEDIA SERVICES

Taylor entered the hospital with congestive heart failure six weeks ago, long after these tweets were posted, but it was a condition she battled for many years, according to her publicist.

FORBES: Elizabeth Taylor's Last Tweets: @DameElizabeth on Love, Death and Kim Kardashian