“Close” your kitchen after 7 p.m.
Your body needs a nighttime break from eating to repair metabolic functions, says Dr. Kahn. Skipping this fast—say, with a midnight snack—can cause a rise in inflammation, blood sugar, blood fats, and cell aging. Putting a mental “closed” sign on your kitchen after dinner, ideally around 7 p.m., is one of the best ways to improve your eating habits in just one day.
Make nuts your go-to snack
People who ate one ounce of nuts a day (that’s about 25 almonds or 50 pistachios) were less likely to die over a 30-year period than people who didn’t eat them at all, found a study of 119,000 people published in the New England Journal of Medicine. Study authors believe that the high levels of healthy unsaturated fats in nuts may lower cholesterol and inflammation, reducing the risk of heart disease, cancer, and more. Meanwhile, avoid these everyday eating habits that are horrible for your cholesterol.
Open your windows
The air inside your home might be even more polluted than the air in the world’s dirtiest cities, says Dr. Kahn. There are dozens of possible sources—hairspray, candles, fumes from the nonstick coating on your cookware. While any might be harmless in small amounts, the caustic brew they create when mixed together can turn up inflammation, raise blood pressure, and harden arteries. Open windows on milder days, and use a fan to circulate the air to reduce indoor air pollution levels.