GOOD

Human Photosynthesis: How Longer Days Help Replenish Your Vitamin D

Your winter blues likely had a physical cause.

If the new season has put a spring in your step, it might be because longer days naturally replenish your vitamin D. Your body needs this fat-soluble vitamin to function properly, as it affects many areas of your body, including your bones, brain, immune system, and muscles. But unlike many other vitamins, it’s easier to get your daily dose from an afternoon stroll than the foods you eat. Click through the slideshow to learn more about how vitamin D is one of the most important and fascinating nutrients you consume—and make!—on a daily basis.


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Seventy-five years ago, on January 27, 1945, the Soviet Army liberated the Auschwitz concentration camp operated by Nazi Germany in occupied Poland.

Auschwitz was the deadliest of Nazi Germany's 20 concentration camps. From 1940 to 1945 of the 1.3 million prisoners sent to Auschwitz, 1.1 million died. That figure includes 960,000 Jews, 74,000 non-Jewish Poles, 21,000 Roma, 15,000 Soviet prisoners of war, and up to 15,000 other Europeans.

The vast majority of the inmates were murdered in the gas chambers while others died of starvation, disease, exhaustion, and executions.

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Culture
via Barry Schapiro / Twitter

The phrase "stay in your lane" is usually lobbed at celebrities who talk about politics on Twitter by people who disagree with them. People in the sports world will often get a "stick to sports" when they try to have an opinion that lies outside of the field of play.

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Culture
via Stu Hansen / Twitter

In a move that feels like the subject line of a spam email or the premise of a bad '80s movie, online shopping mogul Yusaku Maezawa is giving away money as a social experiment.

Maezawa will give ¥1 million yen ($9,130) to 1,000 followers who retweeted his January 1st post announcing the giveaway. The deadline to retweet was Tuesday, January 7.

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Business