Jonathan Lambert
👤 SpeakerAppearances Over Time
Podcast Appearances
Years of this training can push a skier's VO2 max towards its upper limits.
For an athlete to work hard, their muscle cells need oxygen.
The more oxygen they can get, the harder they can go.
Scientists call the maximum amount of oxygen an athlete can use during exercise VO2 max.
Scientists have measured VO2 max across all kinds of athletes, and cross-country skiers consistently rank towards the top.
Stephen Seiler, an exercise physiologist at the University of Agder, explains why.
That means their cardiovascular systems are working overtime to fuel all those muscles and fight gravity because they're upright.
Years of this training can push a skier's VO2 max towards its upper limits.
Cancer has a variety of causes.
Some people can't do anything about, like genetics.
But many cancers are caused by factors that may be somewhat under one's control, like smoking or drinking alcohol.
Researchers analyzed data on over two dozen kinds of cancer across 185 countries.
They found that about 7 million of the nearly 19 million new cancer cases in 2022 may have been preventable.
Cervical cancer, for instance, can be largely prevented with the HPV vaccine.
Drinking less alcohol can reduce risk of stomach cancer, and lung cancer can be caused by smoking, which an individual can quit.
But it can also be caused by air pollution, which requires more collective action to address.
The research appears in the journal Nature Medicine.