GuideTrends & Culture
Do You Really Need Eight Glasses of Water a Day?
The eight-glass rule has no clear scientific source. Here is what recommendations say and simple ways to stay comfortably hydrated.
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Trends & Culture
What’s happening in the world of weight loss: viral diets, headlines, celebrities and the debates.
GuideTrends & Culture
Run Clubs and Group Workouts: Why Moving Together May Help You Stick With It
Studies suggest groups that build friendship can help people keep exercising. Here is how to find a group that feels welcoming.
GuideTrends & Culture
Dry January and Beyond: What a Month Off Alcohol Can Do
A 2025 review of 16 studies found people who took a month off alcohol reported better sleep, mood and energy. Here is how to make a month off feel good.
GuideTrends & Culture
Cycle Syncing: Planning Workouts Around Your Month
Cycle syncing is a popular way to match workouts to your menstrual cycle. Here is a friendly look at what the largest review found and how to listen to your own body.
GuideTrends & Culture
Japanese Walking: The Interval Pattern Behind the Trend
Three minutes brisk, three minutes easy. A friendly look at where the walking trend comes from and what the research does and does not show.
GuideTrends & Culture
Rucking: Walking With a Weighted Pack
Rucking adds a weighted pack to a walk. A look at what the science supports, what it does not, and how to start safely.
GuideTrends & Culture
Electrolyte Drinks: When Water Is Enough
Sports and electrolyte drinks are everywhere. Here is when plain water does the job, when sodium and carbohydrate may help, and what to consider before you buy.
GuideTrends & Culture
Saunas and Heart Health: Promising, but Not Proven
A long Finnish study linked frequent sauna use to fewer heart deaths. Here is what it showed, why it cannot prove cause, and what saunas do not do for weight.
GuideTrends & Culture
Apple Cider Vinegar and Weight: Hype, a Retraction and the Evidence
A popular pantry staple, a high-profile study that was retracted, and what the pooled evidence suggests about vinegar and weight.
GuideTrends & Culture
Mouth Taping for Sleep: A Trend Ahead of the Science
Mouth taping is all over social media, but a 2025 review found little evidence of benefit and some warnings about risk. What to know before you try it.