Why not just a fast shutter speed to freeze motion? That’s what I always think, but there are good reasons to use a flash or speedlight to do it instead. Take a look to see what they are.
Flash
Should You Use ND Filters or High-Speed Sync for Flash Photography?

A lot of photographers like to use a shallow depth of field for portraiture; however, if you are lighting your subject with flash, you will be limited by the flash sync speed of your camera. There are ways around this, however: high-speed sync and ND filters. Both come with their own pros and cons, and this excellent video discusses which is better for your work.
A Modern Approach to Film Photography With Flash

Of course, flash photography existed long before the transition to digital. However, most modern film photography is shot in natural light, whether out of an aesthetic desire or because working with flash and film is a bit of a lost art. Nonetheless, just like digital, flash can open up a lot of creative possibilities, and this excellent video tutorial will show you a modern approach to doing so.
How to Create Subtle Light With Off-Camera Flash

When you think of using artificial light for portrait photography, you might think of it being a calculated, obvious aesthetic, but often, using flash is more about creating a subtle, understated effect that makes your images more balanced and well exposed. This excellent video tutorial will show you how to use artificial light to create an elegant effect for an eye-catching photo.
Learn How This Golden Hour Portrait Was Shot and Edited

Golden hour is a fantastic time to shoot portraits, using the interplay between the warm and dramatic light and your subject to create visually compelling images. This fantastic video tutorial will show you how this golden hour portrait was lit, shot, and edited so you can try the same ideas and techniques yourself.
Bigger Is Better: We Review PNY’s PRO Elite MicroSD Cards

While the choice of a memory card might seem simple if you normally just grab whatever’s on sale, there are a number of reasons to reconsider that method. The latest generation of cards offer faster speeds and larger capacities at better price points. Whether you’re looking to equip your newest action cam or drone, PNY’s Pro Elite MicroSD card is a great choice.