Category Archives: eye

Can Early Morning Sunlight Help You Lose Weight?

Early to bed, early to rise makes a man healthy, wealthy and wise, Ben Franklin. famously said.  If that man gets himself outside in the early morning sun, he may also enjoy other substantially healthy benefits.

I was excited to learn that while I am out riding in the early morning sun, I will be enjoying some other very healthy benefits.

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Dr. Phyllis Zee and other researchers from Northwestern Memorial’s Feinberg School of Medicine recently published a study showing in effect that morning sunlight makes you healthier.

According to the study “Light exposure can influence sleep and circadian timing, both of which have been shown to influence weight regulation.”

The early morning sun affects hormones that regulate appetite and neurotransmitters that regulate the sleep/wake cycle.

The early morning bright lights also wake us and lift our mood which may prompt us to make healthier decisions through the rest of the day.

The study included 54 people for an entire week. Those who spent more time in early morning sunlight were leaner than the ones who got their light exposure later in the day.

Dr. Zee said that the early morning light has more blue which is a more powerful stimulus for your brain. This compares with the red and orange light that we tend to get later in the afternoon.

In case you didn’t know, blue light is melatonin-suppressant. Melatonin is the hormone that starts to put us to sleep. If it is suppressed, we don’t feel as tired and will not fall asleep very easily.

So get out there and get some of those early morning rays. You will start your day on a positive note and feel better the rest of the day.

On the other end of the time spectrum, I have recently learned that TV screens, iPads and computers emit a lot of blue light. That is why working on your computer just before going to bed can make it more difficult to fall asleep. I wear blue blocker sunglasses when I work on my computer late to keep it from interfering with my falling asleep. They seem to work.

Tony

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Filed under biking, circadian rhythms, Exercise, eye, Weight, weight control, weight loss

What are some Strategies to Protect My Eyesight?

“Prevention is the most powerful tool in the quest to reduce disease and healthcare costs,” according to Dr. Nicholas J. Volpe, Tarry Professor and Chairman Department of Opthalmology Feinberg School of Medicine Northwestern University, speaking before Northwestern Memorial Hospital’s Healthy Transitions Program®.

eye-parts

* Don’t smoke. Smoking triples the risk for cataracts and is also a risk factor for macular degeneration and its response to treatment.

*Wear sun glasses that are UV protective.

* Wear safety glasses for high risk activities.

* Pay attention to nutrition. You need fruits and leafy vegetables, Omega 3 fatty acids and vitamins A, C and E. In a study about folks who ate leafy green vegetables, there was a five fold increase in cataract prevention over those who ignored leafy green vegetables in their diet.

* Don’t ignore symptoms. Many afflictions of the eye like glaucoma are irreversible, however, they can be handled when caught early.

* Get regular eye examinations.

Tony

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Blood Vessels in the Eye Linked With IQ, Cognitive Function

Individuals who had wider retinal venules showed evidence of general cognitive deficits, with lower scores on numerous measures of neurospsychological functioning, including verbal comprehension, perceptual reasoning, working memory, and executive function.

Cooking with Kathy Man

The width of blood vessels in the retina, located at the back of the eye, may indicate brain health years before the onset of dementia and other deficits, according to a new study published in Psychological Science, a journal of the Association for Psychological Science.

Research shows that younger people who score low on intelligence tests, such as IQ, tend to be at higher risk for poorer health and shorter lifespan, but factors like socioeconomic status and health behaviors don’t fully account for the relationship. Psychological scientist Idan Shalev of Duke University and colleagues wondered whether intelligence might serve as a marker indicating the health of the brain, and specifically the health of the system of blood vessels that provides oxygen and nutrients to the brain.

To investigate the potential link between intelligence and brain health, the researchers borrowed a technology from a somewhat unexpected domain: ophthalmology.

Shalev and…

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Filed under cognition, cognitive decline, eye, eye health, IQ