Why do astronauts need more calories in space

Astronauts in space require a higher calorie intake (2,500–3,800 daily) compared to those on Earth (2,000–2,500). Microgravity increases energy expenditure due to physiological adaptations, increased exercise to combat muscle and bone loss, and a higher basal metabolic rate. The body works harder to maintain basic functions, thermoregulate, and manage fluid shifts, all contributing to the elevated caloric needs.

Menstrual Cycle Linked to Higher Calorie Intake

medindia.net - 27/Feb 07:52

A study finds that women consume about 168 more calories daily in the luteal phase, linking hormonal shifts to appetite and metabolism changes.

Ramadan is a time to train smarter, not harder

arabnews.com - 28/Feb 19:36

article author: Basmah AlbasrawiSat, 2026-02-28 22:14 RIYADH: Whether you’re a newcomer to the gym or a veteran, Ramadan is a time when everyone...

Study shows weighted vests prevent metabolic slowdown during weight loss

news.medical.net - 14:03

It's encouraging news for people trying to lose weight safely, especially older adults who want to drop pounds without losing bone or muscle mass.

Dehydration’s hidden impact on heart health

innisfiltoday.ca - 21/Feb 16:26

Many adults consistently fall short on fluid intake, and that gap can add to your heart’s workload and compound over time.

Obesity Drug Tirzepatide Activates Calorie-Burning Fat

medindia.net - 21:23

The obesity drug Tirzepatide (Mounjaro/Zepbound) boosts metabolism by activating brown fat to burn calories, offering health benefits beyond weight...