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.

The scene is all too familiar. You start your run or workout and soon enough you have a stabbing pain in your side, become nauseous, or feel the urge to run to the bathroom. This phenomenon is commonly known as runner’s stomach, although it’s not necessarily specific to runners.  Let’s dive into what runner’s stomach is, the causes, and what you can do to avoid it.

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. 

2020 upended our daily lives, and 2021 offered a slow but tangible return to reality. And though some challenges of the past couple of years still linger, 2021 proved to be an incredibly special year at InsideTracker. We were finally able to (slowly...) reconnect with our community in person. We continued to strengthen our community online. And we added new science, data insights, and integrations to the InsideTracker system to create the most reliable and robust version of the InsideTracker ...

Chasing big, wild, audacious goals is nothing new to Shalane Flanagan. This four-time Olympian, Olympic silver medalist, TCS New York City Marathon champion, World XC Bronze medalist, American record holder, Nike Bowerman Track Club coach, three-time New York Times best-selling cookbook author, and proud mom inspired runners and non-runners across the globe with her recent incredible running journey known as Project Eclipse.

Runners and endurance athletes often talk about their personal records (PRs), upcoming races, or the latest fitness tech or gadgets. But there’s always a looming question: How long can I keep going? Physical activity can delay signs of aging by promoting heart health, preventing low bone mass, improving coordination and balance, and lowering the risk of chronic diseases [1]. But endurance athletes also place unique strains on their bodies which can impact healthy aging and their longevity in ...

A recent study finds that nicotinamide mononucleotide (NMN) supplementation improved endurance capacity in amateur runners.[1] Researchers propose that NMN enhances oxygen delivery in muscle tissue, bringing energy to exercise-induced energy-depleted cells. Published this month in the Journal of the International Society of Sports Nutrition, this study is gaining attention from athletes and biohackers alike. Let's dive in.  

Alexi Pappas has one impressive resume. Greek-American runner. Author. Actress. Olympian. Greek national record holder in the 10,000 meters set at the 2016 Summer Olympics. There’s not much this woman hasn’t done. And there’s no limit in sight for what she will achieve in her life. But her accomplishments, drive, and perseverance weren’t possible without consistent recalibration and self-check-in. Alexi wanted objective, science-backed indicators to measure and evaluate her performance, health, ...