Wellness Wednesday – 6/17/20
WELLNESS AROUND THE WEB
One Exercise Session Alters Almost 10,000 Molecules in Our Blood
“I had thought, it’s only about nine minutes of exercise, how much is going to change,” said Michael Snyder, the chair of the genetics department at Stanford University. “A lot, as it turns out.”
When we exercise, the levels of thousands of substances in our bloodstream rise and drop, according to an eye-opening new study of the immediate, interior impacts of working out.
Of course, there is plenty of evidence to show that movement affects almost every organ and biological system within us. But only recently have researchers and scientist been able to quantify more of the substances and steps involved in those processes.
The types of molecules range widely, with some involved in fueling and metabolism, others in immune response, tissue repair or appetite. Within those categories, molecular levels course and change.
However, different people’s blood follows different orchestrations. Those who show signs of insulin resistance tended to show smaller increases in some of the molecules related to healthy blood sugar control, suggesting that they were somewhat resistant to the general effects of exercise. The levels of other molecules range considerably in people, depending on their current aerobic fitness.
High Sugar Dampens Release of Dopamine, Triggering Overeating
Foods with more intense flavor induce sensations of feeling full — a phenomenon researchers have called “sensory-enhanced satiety.”
“Think of a very complex and strong-tasting food — for example, gorgonzola cheese,” said Monica Dus, assistant professor of molecular, cellular and developmental biology at the University of Michigan. “The pungent and penetrating flavor of this cheese is what makes it much harder to eat in bigger amounts compared to, say, mozzarella.”
The Dus lab found that when fruit flies are fed a high-sugar diet, the response of neurons that signal reward in the brain was decreased and delayed. This leads to the fruit flies overeating.
The lab also found that the phenomenon was reversible. The researchers found that correcting the activity of sweet taste cells — getting fruit flies off the high-sugar diet — normalized the response of these neurons to sugar.
“We think that essentially this processing of sweetness in the dopaminergic neurons is probably used as a cue, as an alarm to tell the brain to start slowing down,” Dus said. “If that process is not there anymore, then you have to wait for other cues to tell you that you’re full. By that time, you’ve already eaten a lot of cookies.”
FARMERS MARKETS AROUND THE VALLEY
Local farmers and vendors are doing everything they can to continue providing fresh produce and products to the people. Whether it’s virtual or in-person, here’s a list of local farmers markets that are going above and beyond to serve the community.
This year, the Groundwork Farmers Market will be happening virtually. Order online or by phone, choose from four prepackaged choices, and pick up your delicious goods at their station.
(978) 701-5573 | GroundWorkLawrence.org
The North Andover Farmers Market happens every year, and this year is no different. Although the outdoor market won’t take place until June 14 (through October 4), you can browse through a plentiful selection of fruits, veggies, breads and more at their virtual spring market.
The Salem Farmers Market boasts a family-friendly atmosphere featuring live music, children’s entertainment and seasonal special events. In the midst of COVID-19, the market is taking precautions to create a safe and enjoyable space for all patrons. For the time being, the market will be open every Sunday from 10 a.m. to 12 p.m.
Since 1979, Community Teamwork has sponsored the Lowell Farmers Market, offering fresh, locally grown produce from area farmers, as well as meats, fish, honey, baked goods, prepared meals, hand-crafts and more. This year, the market is set to begin on July 10, and it will run through October 2.
Although the outdoor summer market is postponed, you can visit here to find vendor products.