Articles by Katie Sims

Katie Sims is a freelance journalist who writes about a variety of topics for publications including Marie Claire, Woman&Home, Who What Wear, and Ideal Home. She graduated with a Master's in Media and Journalism in 2021 and has been writing engaging digital content ever since. Her biggest passion is all things health and wellness, and she's tested fitness devices, workout methods, and nutritional advice to see what can help her (and others) feel good from the inside out. When she's not writing health and wellness content, she'll either be on a long walk, at a Pilates class, or tackling her long list of books to read.

Articles by: Katie Sims

3 reasons to start swimming if you're over 50 – and all the kit you'll need

By Katie Sims published 22 December 25

Three science-backed reasons to dive into swimming – plus the simple kit that can make every session better.

A person monitors their heart rate using an Apple Watch.

5 lifestyle changes you need to make to manage hypertension, according to science – and how tech can help

By Katie Sims last updated 17 November 25

Getting a hypertension notification from your Apple Watch is just the start – now you need to change these 5 key habits.

Fitbit Charge 6, Oura Ring 4, Apple Watch Series 9

I tracked my sleep with an Apple Watch, Fitbit and Oura Ring – here’s which one was most accurate

By Katie Sims published 24 August 25

With Apple, Fitbit and Oura all promising to decode your sleep, I put them head-to-head to see which one gave the most accurate picture.

Apple Watch with Heart Rate Zones displayed

5 science-proven ways to use heart rate zones to smash your fitness goals

By Katie Sims published 19 July 25

Forget guesswork. By understanding these five heart rate zones, you can optimize every workout and experience maximum results.

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