Andrew Jacked’s third-place finish in the Arnold Classic 2025 has only made him hungrier, and this time, he is ready to ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Sweat isn’t an ...

I skipped the gym and asked ChatGPT to build an at-home workout instead — here’s what happened and whether it actually made me sweat.

You’ve probably heard: “Sweat it out, and you’ll lose weight!” But is that really true? Does sweating help you lose weight, and does the amount of sweat on your workout clothes really reflect how much ...

Sweating does not help people burn calories. However, it may temporarily help people lose water weight. Despite what some people think, it is not necessary to sweat during a workout to burn calories.

Hydration doesn’t have to be this high-tech or complicated, but nerdy endurance athletes might find the data worth the price. Hydration doesn’t have to be this high-tech or complicated, but nerdy ...

This is read by an automated voice. Please report any issues or inconsistencies here. Waist trainers and sauna suits are some of the most visible pieces of fitness gear on social media. Both promise ...