We break down the complicated subject of lactic acid and lactate, so you can better appreciate what’s happening in the body.

Lactic acid builds up in muscles during intense exercise and causes a burning sensation. However, it is not responsible for next-day muscle soreness.

The misconception that lactic acid is a harmful waste product began with the work of a Nobel laureate. In 1929, British physiologist Archibald Hill analyzed muscle fibers of frogs and suggested ...

When we experience muscle pain, we often say things like ``lactic acid buildup,'' but research has shown that the pain and lactic acid are actually unrelated. Robert Andrew Robbergs and ...

A common misunderstanding is that such soreness is due to lactic acid build-up in the muscles. Research, however, shows lactic acid has nothing to do with it.

Scientists have discovered that lactic acid actually helps muscles keep firing when the main pathways tire out. Misconceptions about lactic acid began with a 1929 experiment by Nobel laureate ...

It’s been said that an intense burst of physical activity produces lactic acid, which causes muscle pain or cramping that is sometimes felt during a workout. But it’s important to remember that just ...

Lactic acid training is a kind of confusing strength-training trend. People claim it boosts muscle mass, but should you try it?

Lactic acid isn’t your muscles’ foe. It can actually keep you fit and motivated, according to a study published Tuesday.