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

These 3 running shoes were just revealed as the most popular of 2025 — here's the ones we'd buy
By Jessica Downey published
Strava’s end of year report shows Asics, Nike, and Hoka leading the pack for most-logged running shoes in 2025.

Recent study reveals why muscle and healthy visceral fat levels matter for keeping the brain biologically young
By Jessica Downey published
Science finds that people with more muscle and less deep abdominal fat tend to have younger-looking brains, so we spoke to a certified personal trainer on how to get started.

Forget 75-Hard — a PT shares just 3 essential exercises to begin building muscle and strength before the New Year
By Jessica Downey published
Three simple strength exercises with expert backing to help you start building muscle now, build confidence, and enter January without burnout from year-end fitness crazes.

This huge 40-year study reveals the decade when exercise matters most for your brain
By Jessica Downey published
Forty years of data show that exercise in midlife and later life offers the biggest protection against dementia, though staying active at any age is important.

I asked a chiropractor how to fix my posture, and they recommended this one exercise
By Jessica Downey published
Dr. DebRoy recommends the heel-elevated goblet squat to reduce strain, improve posture, and build strength safely.

No, not sit-ups — a trainer says these 5 moves build deep and functional core strength for anyone over 50
By Jessica Downey published
You can build serious core strength without ever hitting the floor. Trainer Eric North’s five-move routine is designed to help anyone over 50 do exactly that.

Bad knees? A trainer swears by these 7 moves for building full-body strength after 70
By Jessica Downey last updated
Seven low-impact exercises that build strength from head to toe while keeping your joints happy.

5 simple tips a Pilates instructor wants every beginner to know
By Jessica Downey published
From breathing and core engagement to what to wear and which style to choose, these five expert-backed tips will help you step into Pilates with confidence.

Scientists find one exercise that's 6 times more powerful than walking when it comes to protecting your heart
By Jessica Downey published
While walking remains a heart-healthy habit, a new study shows that vigorous activity could support your cardiovascular health in a fraction of the time. Here’s what the data actually reveals.

Try this easy 5-move standing core workout if you want strength without getting on the floor
By Jessica Downey published
You don’t need sit-ups or crunches to feel your core work. This all-standing routine helps strengthen your middle, improve balance, and stay joint-friendly at any age.

This workout skips sit-ups and crunches: Here's a trainer's 4-move routine for building a stronger core over 50
By Jessica Downey published
Strengthen your core with these four standing bodyweight exercises. No floor work required.

Forget running — try this 15-minute walking workout that’s low-impact but surprisingly powerful for your metabolism
By Jessica Downey published
This 15-minute, low-impact workout helps increase your daily step count, build cardio fitness and stimulate your metabolism for better all-day energy.

Nope, not sit-ups — expert coach shares his three-move recipe for building real core strength
By Jessica Downey published
An expert coach shares his three-move recipe for building real core strength.

This 15-minute dumbbell workout is the one routine you need if you want a stronger core
By Jessica Downey published
Want stronger abs and better posture? Trainer Sandy Sklar’s dumbbell routine delivers, and it only requires one pair of weights.

The 3 simple exercises an 81-year-old fitness icon does daily to stay strong and mobile
By Jessica Downey published
At 81, Jazzercise founder Judi Sheppard Missett shows how to stay strong and mobile with her go-to exercises and practical advice for movement, nutrition, and rest.

If you want a more defined chest, a strength expert says to focus on these 3 moves — not endless reps of push-ups
By Jessica Downey published
Here are three exercises you need to include in your upper body strength training if you want to grow and define your lower pecs, according to a personal trainer.

Forget endless sit-ups and crunches — this trainer's 5-move resistance band routine will fire up your core and build real strength at home
By Jessica Downey published
Work your core muscles, improve your posture and boost your stability with this five-move resistance band routine from fitness trainer Cindy Yu.

This workout protects your joints while building strength: Here’s a trainer’s 15-minute resistance-band routine for getting stronger over 70
By Jessica Downey published
If you want to build strength and mobility without putting pressure on your joints, this trainer-designed full-body resistance band workout is for you.

Over 55? I asked a Pilates instructor for this gentle 10-minute chair workout
By Jessica Downey last updated
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.

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.

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.
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