The measure of heart rate variability (HRV) has become increasingly popular and accessible to many with new wearable device technology. HRV is an individualized metric that can help monitor and track the body’s resilience and ability to manage stress. It's a sought-after indicator for those looking to optimize their overall health, performance, and recovery. Let's dive into everything you need to know about good heart rate variability.

Using heart rate as a training tool for running is a common practice among runners of all levels and all distances. Like many aspects of health and fitness, heart rate zones and their application in training will vary between each person. Here we’ll dive into what you need to know about running heart rate. 

"Women are not small men." Have you heard this buzzing around on social media, blogs, or articles across the internet? Lots of women want to take steps to improve their health, but the general nutrition advice our male counterparts follow often neglects female-specific needs. We can't just do a simple calorie conversion to translate a man's dietary needs to our own! But how do we differ? And what are some simple ways to start meeting our requirements? We're sharing some of our favorite foods ...

As women in the sports and fitness world, sometimes it can feel like we have something to prove — that we can train, grow, and recover with the rest of 'em. But our female physiology isn't a weakness, and it certainly doesn't have to impede our training goals. Just like anything in the natural world, our bodies and hormones go through cycles, which can be monitored and adjusted to accordingly. While we recognize that every woman is different when it comes to her period, we can use science to ...

  It’s that time of the year again; the days are shorter, colder, and while many athletes may welcome the time of rest, others struggle without their regular training routine. Most athletes ‘off-season’ time settles in and while you may miss working toward that athletic goal during this time, let us help you make the most of the off season to set yourself up for an even better year of racing in the new year!

Getting older is scary! With each birthday, we venture further into the ‘unknown’ that is older age -- further into the territory of “can my body still do this?” Our physical abilities change as we age; it’s natural, inevitable, and predictable. Our hormone levels shift, our bones get less dense, our dietary requirements recalibrate. But certain changes are (at least in part) avoidable. Muscle wasting is one of them; by making health-oriented choices, you can stay strong, even into your later ...

Known to be one of the most grueling tests of endurance and the oldest 100-mile trail race in the world, the historical Western States 100 is set on technical trails and terrain from Squaw Valley to Auburn, California. As the countdown to race day continues, we had the opportunity to chat with a few athletes about how they’ve used InsideTracker to help get them to the start line prepared to tackle 18,000 feet of ascent and 23,000 feet of descent over 100.2 miles... all in (mostly) one day.

In the ‘80s, it was aerobics. In the ‘90s, racquetball. What exercise craze made its landing in the 2000s? HIIT. In fact, since 2004, researchers from fields ranging from kinesiology to cognitive neuroscience have been studying the power of this workout style and its incredible health benefits.1,2 And no, HIIT isn’t just for people training for an event or trying to hit a weight loss goal. Have we piqued your interest? Keep reading.