PENGHU ISLANDS, Taiwan — First came the flares, launched just offshore to erase the darkness with a bright orange glow. Then came the light machine guns, fired from several positions across the cliff ...

There is validity to the claim that exercising at night can affect sleep. When you work out, you activate the sympathetic ...

The three-day operation appeared to be an attempt to prepare for a night-time invasion China’s army is stepping up night-time training in a signal it is ready for “surprises” in a possible war with ...

Sleep guidelines have long warned against exercising before bed, but new research suggests that the relationship between ...

Trying to get a good night of shut-eye can be trickier than it looks. Juggling sleep, fitness, work and time with friends and family can be exhausting. Often, sleep is what is sacrificed, despite its ...

Ever crawled into bed after crushing a late-night workout only to find yourself staring at the ceiling for hours? You’re not alone. The relationship between evening sweat sessions and sleep quality is ...

The Air Force’s 18th Wing is tightening approval measures for nighttime exercises after unauthorized training last month involving simulated explosions and gunfire drew complaints from a neighboring ...

Maybe you're the kind of person who likes to lift weights while watching "Late Night With Jimmy Fallon," go running in the park at 10 p.m. or practice Pilates after you've digested your dinner. If so, ...