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Deep sleep stage You may have heard that adults need between 7 and 9 hours of sleep each night. But, the quality of sleep you get also matters. While you rest, your body goes through different stages of the sleep cycle. Deep sleep, for example, is the stage of sleep you need to feel refreshed when you wake up in the morning. Unlike rapid eye movement (REM) sleep, deep sleep is when your body and brain waves slow down. It’s hard to wake from deep sleep, and if you do, you may feel particularly groggy. Read on to learn more about this part of...

Grounding is a practice that can help you pull away from flashbacks, unwanted memories, and negative or challenging emotions. These techniques may help distract you from what you’re experiencing and refocus on what’s happening in the present moment. You can use grounding techniques to help create space from distressing feelings in nearly any situation, but they’re especially helpful if you’re dealing with: anxiety post-traumatic stress disorder dissociation self-harm urges traumatic memories substance use disorder Physical techniques These techniques use your five senses or tangible objects — things you can touch — to help you move through distress. 1. Put your...

Using accredited lab tests that mimic human tissue, reporters from The Chicago Tribune tested smartphone radiofrequency radiation emitted by 11 models of popular cell phones. They found most of the phones exceeded the legal limit set by the FCC of 1.6 watts per kilogram averaged over 1 gram of tissue. Radiofrequency radiation exposure from the iPhone 7 — one of the most popular smartphones ever sold — measured over the legal safety limit and more than double what Apple reported to federal regulators from its own testing. The FCC is currently investigating the reported findings. A recent investigation has reignited...

Sleep is essential for good health. In fact, we need sleep to survive — just like we need food and water. So, it’s no wonder we spend about one-thirdTrusted Source of our lives sleeping. Many biological processes happen during sleep: The brain stores new information and gets rid of toxic waste. Nerve cells communicate and reorganize, which supports healthy brain function. The body repairs cells, restores energy, and releases molecules like hormones and proteins. These processes are critical for our overall health. Without them, our bodies can’t function correctly. Let’s take a closer look at why we sleep, along with what happens...

Sensory memory is one of several memory types that make up your ability to process and recall what you see. Sensory memory is a brief precursor to short-term memory that allows you to process and recall the sensations you take in. Keep reading to find out about sensory memory, including how doctors identified this memory type in the first place. What is sensory memory? Sensory memory is a very short-term, but large capacity memory source. One way to think of this memory type is like the start of your memory. It’s when you take in everything around you before transmitting a portion...