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Creaky joints may sound like a sign that you’re getting older and your body is falling apart, but in most cases your noisy knees are nothing...

As I wrap up Week Three of trying to learn to like running—a thing I have hated most of my life—for my monthlong “Lifehacker Fitness Challen...

It’s been interesting to watch COVID vaccine rumors evolve (mutate?) in the months since the vaccines were first introduced. At first, many...

How do you know if you’re doing too much in the gym, or not enough? We’ve talked about how to manage the intensity of your exercise, but wha...

If you do a lot of deadlifts or other grip-exhausting exercises like pull-ups, you’ve probably developed some calluses on your hands. And if...

So you’re finally headed back to the gym after some time off. Whether you kept up your fitness a bit with home workouts, or completely forgo...

As we’ve discussed before, there are three ways to hold onto a barbell if you’re worried your grip is going to slip. You can use straps, you...

As I embarked on the second week of my monthlong goal to actually like running, I was not expecting miracles to happen. Despite being a fair...

Returning to the gym after a long time off is a strange feeling. You’re either weaker than before, or you’re fit in a different way (maybe y...

The FDA has decided to extend the Pfizer COVID vaccine’s emergency use authorization to children ages 12 and up. The vaccine appears to be a...

Lifting is about as simple as an exercise gets: You pick the thing up, and you put the thing down. But that doesn’t mean you’re going to wal...

It’s easy to exercise the muscles you can see—your biceps, your quads—but there are more muscles in your body than just the big ones. We’ve...

“Gas station sushi” has become something of a punchline, a thing that one obviously should not eat, a thing that should not exist. But is su...

This year, Lifehacker’s senior health editor, Beth Skwarecki, opened up her regular “Lifehacker Fitness Challenge” to the entire staff. We c...

COVID-19 vaccines are getting easier to find. As of a few weeks ago, all adults in the U.S. are eligible to make vaccine appointments, no ma...

Sometimes when we’re sweating away in the gym, our goals can seem quite far away. That’s why it can be so inspiring to watch other athletes...

While debates rage about whether we need national or state “vaccine passports,” the truth is that we already have one, and it’s a little pi...

If your feet hurt on short runs, you probably just aren’t wearing the right shoes. But it’s common to start getting toenail problems when yo...

It’s time to bust a gym myth. I remember being taught, explicitly, as if it were a fact that my life might someday depend on, that you shoul...

The COVID vaccines are notorious for causing fatigue, sore arms, and sometimes headachy or feverish reactions. So if you have a vaccine appo...

Social media is full of gym selfies showing people beaming sweatily after a good workout. It’s also full of people complaining about gym sel...

For about 10 years, I trained Brazilian jiu-jitsu three times a week—a consistent level, if one you’d still consider recreational. Sure, the...

We’ve sung the praises of resistance bands before, and they definitely have their uses. Bands are affordable and portable, so it’s no wonder...

It’s a given that masks are important to wear indoors and in crowded settings, but the CDC now officially says they are not always necessary...

Tell me if this sounds familiar: You’ve been training to do something—your first pull-up, let’s say—and after weeks or months, you finally m...