In last week’s post, I talked about the toxicity of commercial sunscreens, and why they are bad for your health. I also mentioned that the sun is not the primary cause of skin aging and skin cancer, and promised to share my conclusions with you this week.
Despite the enormously bad press the sun has received in the past few decades, all skin damage is not the fault of the sun. The root cause of skin aging (including wrinkling, hyperpigmentation, and loss of collagen) as well as skin cancer is oxidative damage caused by reactive oxygen species (ROS). While the sun is one of the factors that create ROS, there are many other culprits, including external factors (air pollution and chemical exposure) and internal factors (poor diet, emotional stress, lack of sleep, and the natural aging process). ROS are believed to trigger skin cancer and photosensitivity diseases by activating proliferative and cell survival signaling that can alter apoptotic pathways (the self-destruction of abnormal cells).
Continue reading “The Dangers of Commercial Sunscreens, Part 2”
If you’ve ever walked into a room and couldn’t remember why you were there; misplaced your keys (or even your car in a parking lot); or forgotten the name of an acquaintance, you might have momentarily wondered about your memory or if you were losing your mind. If you’re over the age of 50, you might even be seriously concerned about the possibility of Alzheimer’s.
It’s a valid concern. According to the 2008 Alzheimer’s Association figures, more than five million Americans over the age of 65 have Alzheimer’s disease. In addition, approximately 500,000 Americans under the age of 65 suffer from Alzheimer’s or other forms of dementia.
Although a decline in memory and brain function is generally regarded as an inevitable part of growing older, in reality, brain aging is caused by poor cerebral circulation, mitochondrial dysfunction, inflammation, oxidative damage, and decreased levels of anabolic-repair hormones, including DHEA and testosterone. All of these factors contribute to changes in the brain that lead to neuronal degeneration and cognitive impairment.
Continue reading “Herbs and Nutrients to Keep Your Memory Sharp”