Most people associate cortisol with the “fight or flight” response. While this biochemical indeed functions as a stress hormone—and can have negative effects in excess—it is a necessary hormone for a variety of human biological functions. It is produced from cholesterol in the adrenal glands, which sit directly on top of the kidneys. It is released […]
Melatonin Signaling and Type 2 Diabetes: A Connection
Shift work and insomnia have been linked to a variety of endocrine disorders, including type 2 diabetes. A new study points to abnormal melatonin signaling as a possible cause. Shift work is a necessary evil in modern society. Not only do people need access to emergency services at night, but we also can perform activities […]
Unraveling the Mysteries of our Biological Rhythms: The Suprachiasmatic Nucleus
The suprachiasmatic nucleus, or SCN, is considered the “master clock” of the human body. Understanding the SCN is key to unlocking the secrets of the body’s internal clock. The suprachiasmatic nucleus is the source of our innate biological rhythms, coordinating a variety of physiological processes to environmental levels of light and dark. Despite its importance, […]
Blue Light Detrimental Before Sleep, but Possibly Beneficial Before Surgery
While the neurological effects of blue light can keep you up at night, they may actually help you recover from surgery. Between televisions, smartphones, tablets and laptops, blue light is almost ubiquitous in modern society. Ridding your world of screens, even for a few hours before bed, is a challenge for many people. This constant […]
Sleep and the Immune System: Strengthening Immunological Memories
Over-tired and under-rested? New research on sleep and the immune system suggests that you may be at greater risk of illness. Researchers in chronobiology have long realized that sleep can affect the memory of information, facts and past events. However, a new study suggests that sleep may also affect a very different kind of memory: […]
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