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Late-Night Eating Linked to Higher Risk of Fatty Liver Disease and Cirrhosis in a Study of 199,000 Adults

People who regularly ate after dinner or after bedtime had a higher risk of fatty liver disease and cirrhosis in three large U.S. cohorts. Here’s what the study can and can’t tell you, and some low-risk habits to try.

Hard Intervals Helped Adults in Their 70s Lose Fat Without Losing Lean Mass, a 6-Month Study Finds

In a trial of 123 healthy older adults, high-intensity interval training trimmed fat while preserving lean mass. Other research is more mixed, and the differences were small.

Loneliness and Isolation May Cost Years of Healthy Life, a Study of 277,000 Adults Finds

People who were both lonely and socially isolated could expect up to 5.8 fewer years free of mental disorders. Healthy habits helped with one of the two, but not the other.

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Nicotine Vapes Helped More Smokers Quit Than Patches or Gum, a Review of 80 Trials Finds

An updated Cochrane review of nearly 30,000 smokers found regulated nicotine e-cigarettes beat nicotine patches and gum for quitting. Here’s what that does and doesn’t mean.

Coffee Drinkers Have a Different Gut Mix, a Small Study Finds. Decaf May Have Perks of Its Own

A small Irish study found regular coffee drinkers had distinct gut bacteria and metabolites, and that decaf and regular coffee may affect mood and memory differently.

Halloween Candy Without the Sugar Hangover: A Realistic Game Plan

Halloween falls on a Saturday this year, which means a weekend of treats. Here’s what current US guidance says about added sugar, plus simple, food-safe ways to enjoy the night without a weeklong candy binge.

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The MIND Diet Is Linked to Brains That Age 2.5 Years Slower

A 12-year study of more than 1,600 adults found that people who ate more like the MIND diet lost brain tissue more slowly.

Cutting Ultra-Processed Food Eased Depression Symptoms in a Small Study

People with depression who cut ultra-processed food by more than 85% for four weeks reported notable improvements. It’s early, but promising.

How Much Whole Grain Is Enough? A Big Review Points to a “Sweet Spot”

A meta-analysis of 87 clinical trials found that eating more whole grains improved several heart risk factors at once, with the clearest benefits at about four to six servings a day.

Too Much Light at Night May Be Reshaping the Heart, Study Suggests

In a study of more than 11,000 adults who wore light sensors, brighter nights were linked to early changes in heart structure. The findings are preliminary, but the practical takeaway is simple and cheap.

Taking the Stairs Is a Small Habit With a Big Research Footprint

A new meta-analysis of more than 450,000 people links regular stair climbing to a lower risk of dying from heart disease. Here’s what the research found, and what it can’t tell us yet.