1.India faces growing heatwaves.

India saw its hottest February in 120 years of records, and forecasters expect a very hot summer. The average maximum reached 29.5 C (85 F) last month, nearly 2 C above normal. The Indian Meteorological Service said heatwaves are expected in April and May, potentially affecting agriculture and pushing up electricity demand. Heatwaves are becoming more frequent in India: Last March was also the hottest recorded, and New Delhi banned wheat exports in 2022 because crop failures pushed prices up. Last year saw power outages driven by increased demand, and deaths from extreme heat have risen 55% since the turn of the millennium, the BBC reported.

2.A study shows a possible link between a zero-calorie sweetener and an increased risk of heart attack.

Consumption of erythritol, a sweetener that is often added to low- or zero-calorie foods and drinks, may contribute to an increased risk of cardiovascular events, researchers reported — making it just one of many sugar substitutes whose long-term risks have been called into question.

Experts said that people may want to avoid large amounts of artificial sweeteners, especially if they have heart disease or are at risk for heart attacks or strokes, but warned against drawing strong conclusions before more research is done. For some people, especially those with conditions like diabetes.

3. How the brain ages across the lifespan .

“The good news is, that unlike other parts of the body, our brains are built to change over our lifetime, meeting the challenges set by every life stage. While nobody can predict the exact ages of brain development, here's a general guide to how the brain may change at various ages." Washington Post: How does the brain age across the lifespan? New studies offer clues.

4.One billionaire at a time’: inside the Swiss clinics where the super-rich go for rehab. For the ultra-wealthy and the super-famous, regular therapy won’t do. Long Read from the Guardian.