Harry Guinness
Contributing since September, 2016
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625articles
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About Harry Guinness
Harry Guinness writes occasionally when he’s not busy skiing, sailing, partying, lifting weights, or otherwise dodging responsibility. His main areas of interest are himself, gin, and crazy people with interesting stories to tell. When people won’t pay him to write ill-thought-out opinion pieces, he covers photography, technology, and culture. You can follow him on Twitter.
Latest Articles
What Is Heart Rate Variability (HRV) on Apple Watch, and Why Does It Matter?
Heart rate variability (or HRV) is the latest hot wellness metric. Here's how to track it with your Apple Watch---and what it means.
How to Share an ECG from Your Apple Watch with Your Doctor
Some Apple Watch models can take an ECG, which is cool---but it can be useful medically, too. Here's how to share the results with your doctor.
How to Use Photoshop and Lightroom's "Super Resolution" Feature
Adobe's Super Resolution feature can automatically add missing details to your low-resolution photos.
How to Bring Back Photoshop's Warning Dialogs
Photoshop can be overeager in showing warning dialogs. But if you've dismissed too many important ones and want them back, here's what to do.
How to Enable Do Not Disturb During Workouts on Apple Watch
Don't like phone calls in the middle of a workout? Make sure this Apple Watch setting is turned on.
How to Change Ruler Units in Adobe Photoshop
Photoshop's rulers are a super useful tool. Here's how to change what unit they measure in so that you can crop and edit your images more accurately.
Do You Need a Special Lens to Take Portrait Photos?
Do you need a special lens to take portraits? It's a firm maybe sometimes.
How to Set Up Your Own Website the Easy Way
Want your own website? Here's how to get started---the quick, easy, and inexpensive way.
Do You Need a Tripod for Landscape Photos?
Do you need a tripod for great landscape photos? Let's find out.
All the Equipment You Need for Apple Fitness+ Workouts
Apple Fitness+ workouts don't need a lot of gear, but they do need some. Here's our favorite gear to sweat with.
Why Your Resting Heart Rate Just Got Higher on Apple Watch
Has your resting heart rate on your Apple Watch jumped recently? Here's what might be going on.
How to Customize Your Apple Watch's Control Center
You can customize the Control Center on your Apple Watch. Here's how to make your favorite features just a swipe away.
How Computational Photography Improves Smartphone Photos
Computational photography sounds like something futuristic but, if you have a smartphone, you use it every time you take a photo.
What to Do If Your Apple Watch Won't Charge Properly
Without a simple charging port, troubleshooting an Apple Watch that won't charge is a little trickier. Here's what to do.
Can You Tell When Your Apple Watch Has a GPS Lock?
Unlike many running watches, Apple Watch won't tell you if it's got a GPS signal or not---but there's a workaround. Here's how to tell.
How to "Lap" on Your Apple Watch When You Run or Cycle
The Apple Watch doesn't have a dedicated "lap" button like a running or multi-sport watch—but it still has the feature. Here's how to use it.
Why Can't I See the Burn Bar on My Apple Fitness+ Workouts?
The Burn Bar is one of Apple Fitness+'s big features. If you don't see it, here's what to do.
How to Stop Low Cardio Fitness Notifications on Apple Watch
Are you getting Low Cardio Fitness notifications on your Apple Watch? Here's how to stop them.