Temperature is personal, and different people respond differently to Embr Wave. While some people find that everything clicks the first time they try it, you might find that it takes some time for your body to get used to the Wave before it starts to feel effective. Many users have told us that it can take up to 2-4 weeks before they start to notice a major difference in their hot flashes—and that Embr Wave works better and better the more they use it! We strongly encourage you to download the app and experiment with your Wave to find out what works best for your body. And check out the reviews to hear from thousands of real people who’ve tried Embr Wave!