Jessica has been a fitness writer at Tom’s Guide since 2023, bringing three years of experience writing about health, fitness, and the great outdoors. Her passion for exercise began during her childhood, where she spent weekends hiking and competing in local athletics club events. After earning a master’s degree in journalism from Cardiff University, Jessica found the perfect way to combine her love of storytelling and fitness into a career.
Jessica is passionate about testing fitness gear and tech, using her reviews to help readers make informed buying decisions. She ran her first marathon in April 2024, finishing it in 3 hours and 48 minutes. Through her training, she’s developed a deep understanding of what it takes to grow as a runner, from effective workouts and recovery techniques to selecting the right gear for every challenge.
When she’s not at her desk, Jessica enjoys spending time in the kitchen crafting new recipes, braving cold water swims and hiking.
Latest articles by Jessica Downey

Best indoor cycling trainers 2025 to help you ride more this year
By Dan Cavallari last updated
Never miss a session with one of the best cycling indoor trainers in your home. Here's the best models according to our testing.

Over 55 or returning to exercise? Try this gentle 10-minute chair workout to build strong legs without squats or knee pain
By Jessica Downey published
Low impact doesn’t mean low results. Try this gentle chair-based workout to improve your balance, mobility, and lower body strength at any age.

It’s not about more walks — one longer walk a day could be the key to better heart health
By Jessica Downey published
One steady walk each day may be more beneficial for your heart than splitting the same steps into shorter bursts.

I did a Spartan Race untrained — 5 things I’d do differently after talking to the elites
By Jessica Downey published
After tackling a Spartan Race untrained, I asked elite athletes how to actually prepare. Here are their five best tips.

You only need 5 minutes to strengthen your mind — here’s how, according to a sports psychologist
By Jessica Downey last updated
You don’t need a quiet studio or half an hour to meditate. This five-minute mindfulness routine from a sports psychologist will help you refocus your breath, mind and body anywhere in your day.

Thinking of using ChatGPT to build your next workout plan? Read this first
By Jessica Downey last updated
AI can whip up a workout in seconds, but is it safe to rely on it alone? A personal trainer explains how to do it right.

This workout skips the squats and saves your knees: Here’s a trainer’s 6-move chair routine for building stronger legs over 55
By Jessica Downey published
Strong legs shouldn’t come at the cost of sore knees — and this trainer knows it. All you need is a chair for this lower-body workout.

What are the best running hats for men and women 2025
By Jessica Downey last updated
We've tested the best running hats for breathability, sweat-wicking, and fit.

Oura is testing a new hypertension detection feature to rival the Apple Watch
By Jessica Downey published
Oura has launched a new Blood Pressure Profile study to explore how its smart ring could help detect hidden hypertension risks. Here's what we know so far.

I tested a 5-minute posture hack — and it actually worked
By Jessica Downey published
Follow this Pilates instructor’s 5-minute routine to unlock better posture, release tight muscles and heighten body awareness.

The surprising health benefit of rolling your shoulders — and why it feels so good, according to new research
By Jessica Downey published
That satisfying stretch you do without thinking? Science says it might actually be helping your heart.

These 7 standing ab exercises target your core without a single sit-up or crunch — and they’re great for your posture too
By Jessica Downey published
This standing abs routine strengthens your core, boosts posture, and lays the foundation for a stronger, more balanced body.

Endurance training could be one of the most effective ways to support a stronger immune system — here's what the science says
By Jessica Downey last updated
Researchers found that long-term endurance exercise can do more than build fitness — it helps keep the immune system stronger and more resilient with age.

I ran an off-road half-marathon in the Altra Timp 5 BOA — here’s my verdict
By Jessica Downey published
The Altra Timp 5 BOA is built for comfort and technical terrain, with a spacious toe box and quick-fit system that some runners will love — and others may find less forgiving over distance.

I trained for my first trail half marathon with Runna — and it paid off
By Jessica Downey last updated
I signed up for my first trail race and let a running app guide my training, from base building to the finish line. Here’s how it all played out.

This 20-minute full-body dumbbell workout is designed to build lean muscle and boost power
By Jessica Downey published
This is a full-body strength-building workout that takes just 20 minutes. Grab your weights and get ready for some gains.

30 minutes, 1 pair of dumbbells, and a serious back and biceps burn
By Jessica Downey published
A tough 30-minute workout for a stronger, more defined set of arms and back.

You don’t need a retreat to feel better — science says 15 minutes of movement is enough
By Jessica Downey published
Wellness retreats aren’t the only way to recharge. New research suggests short bursts of movement can boost your wellbeing more sustainably than a luxury vacation.

A certified coach reveals the 8 exercises football players swear by for total-body strength
By Jessica Downey last updated
Ever wondered how football players train in the gym? I spoke to coach and NASM-certified trainer Kendal Fitzgerald, who shared this 8-move workout you can try yourself.

Zone zero is the fitness trend for people who hate HIIT workouts but want results — here's how to try it
By Jessica Downey published
Is zone zero training just a fad, or can it really boost your health? We break down what it is and hear from a physical therapist and strength coach.

Trainer shows how to sculpt arms and strengthen your core in just 15 minutes with 1 simple dumbbell workout
By Jessica Downey last updated
Kill two birds with one stone (dumbbell) in as little as 15 minutes using this trainer's abs and arms strength building workout.

I asked a coach for the single best strength exercise for runners and this was his pick
By Jessica Downey published
If you could only add one strength move to support your running, what should it be? I asked a trainer to pick their number-one recommendation, and here’s the exercise they swear by.

Physical therapist reveals 3 moves that relieve shoulder pain and improve your range of motion
By Jessica Downey last updated
I spoke to a physical therapist to find the best moves for looser shoulders, less tension and improved posture. Here's her 3-move answer.
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