Have you ever noticed something about professional hockey players?
They often have great hair.
Thick. Dense. Healthy. Flowing.
It's not a coincidence. And it's not genetics alone.
It has a lot to do with how they train.
The Physiology of the Game
Hockey is played in short, explosive shifts:
- 30–60 seconds of all-out effort
- Followed by rest
- Repeated over and over again
This style of exertion is known in exercise science as Zone 4 training.
Zone 4 is where your heart rate reaches roughly 80–90% of your maximum. It's intense. It's uncomfortable. And it can only be sustained briefly.
This is very different from what most people think of as "cardio," like long-distance running or steady cycling, which typically falls into Zone 3 (70–80% of max heart rate) and can be sustained for much longer periods.
And this difference matters — not just for fitness, but for how your body ages, including your hair.
Why Zone 4 Is Different for Your Biology
Short bursts of high-intensity work are strongly associated with:
- Improved VO₂ max (your body's ability to use oxygen efficiently)
- Increased growth hormone signaling
- Better mitochondrial function
- Improved vascular circulation
- Lower resting cortisol over time
These are not just fitness markers. They are anti-aging markers.
They directly influence:
- Microcirculation to the scalp
- Oxidative stress levels
- Hormonal balance
- Cellular energy available to hair follicles
- The longevity of the hair growth (anagen) phase
In other words: the same signals that keep athletes young also help keep follicles young.
The Hidden Problem With "Chronic Cardio"
Long steady workouts (Zone 3) absolutely have benefits for endurance and heart health.
But when done excessively, they can also:
- Elevate cortisol for prolonged periods
- Increase oxidative stress
- Break down connective tissue and collagen
- Create systemic stress that the body must recover from
Chronically elevated cortisol is one of the major drivers of hair aging:
- Shortens the growth phase
- Increases shedding
- Disrupts hormonal balance
- Accelerates follicle miniaturization
This is why you'll often see endurance athletes who are extremely fit… but who appear prematurely aged, including their hair (or lack of it!).
The testosterone and hormonal side of this equation is worth understanding too. This post on testosterone and why it's not the villain your hairline thinks it is breaks down how hormonal balance connects to long-term hair health.
Hair Ages for the Same Reasons the Rest of You Ages
Hair doesn't simply "fall out."
It ages out.
And the biggest drivers of that aging are:
- Oxidative stress
- Poor microcirculation
- Hormonal imbalance (high cortisol, declining testosterone)
- Reduced cellular energy in follicles
Zone 4 training directly counters these drivers.
This is why athletes in explosive sports — like hockey — so often maintain dense, youthful hair longer than the average person.
To understand just how energy-dependent hair follicles really are, this post on why hair follicles are energy factories is worth reading alongside this one.
How to Train Like a Hockey Player
You don't need to skate.
You just need to mimic the physiology.
2–3 times per week, incorporate short, intense intervals such as:
- Sprint intervals (bike, rower, treadmill, outdoors)
- Hill sprints
- Assault bike or rowing intervals
- Circuit training with short rest periods
Work hard for 30–60 seconds. Recover. Repeat.
This style of training improves the internal environment that hair follicles depend on to stay in their growth phase longer and resist the visible signs of aging.
This Is Hair Longevity in Action
At FOLIKL, we talk about hair longevity because hair aging is a systemic process.
What you put in your body matters. How you move your body matters too.
If you want hair like a hockey player, train like one.
Short bursts. High intensity. Full recovery.
Your heart benefits. Your mitochondria benefit.
And over time, your hair does too.
To see the full picture of how lifestyle, biology, and nutrition work together for long-term hair health, this breakdown of the 5 biological systems that drive hair longevity is a good next read.
FOLIKL™
Hair Longevity Meets Male Vitality