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When discussing human metabolism, four concepts often arise: total daily energy expenditure (TEE), basal metabolic rate (BMR), resting metabolic rate (RMR), and the thermic effect of food (TEF). Energy expenditure science can feel alphabet-soup–heavy, so let’s clarify these key terms in more depth: Total Daily Energy…
Now, the other kind of stress Structural stress from activity that physical activity cause is structural stress. Now, when I was running this morning, for example, my mitochondria were generating all kinds of ATP to fuel my body, but my mitochondria were also spewing out all kinds of reactive oxygen species, which…
Humans of all to be much more physically active than our ape ancestors. Typical chimpanzee walks maybe two to three kilometers a day, and they take maybe what, three, 4,000 steps a day. A typical hunter-gatherer takes about 15 to 20,000 steps a day. Per kilo hunter-gatherers spend about twice as much energy per kilo…
"The muscles we use to breathe atrophy, just like the rest of our muscles tend to do as we get older," explains researcher Daniel Craighead, an integrative physiologist at the University of Colorado Boulder. To test what happens when these muscles are given a good workout, he and his colleagues recruited healthy…
In this cross-sectional study, we analysed data from 1 237 194 people aged 18 years or older in the USA from the 2011, 2013, and 2015 Centers for Disease Control and Prevention Behavioral Risk Factors Surveillance System survey. We compared the number of days of bad self-reported mental health between individuals who…
"The pie keeps growing because things that look like wants today are needs tomorrow," argued Marc Andreessen, the Netscape cofounder, who lelped to ignite a whole new industry, e-commerce, that now employs mil)ns of specialists around the wodd, specialists whose jobs weren't even lagined when Bill Clinton became…
To answer the simplest question of whether taking in more protein during weight training led to larger increases in muscle size and strength, the researchers added all of the results together. [...] But those who did ramp up their protein gained an extra 10 percent or so in strength and about 25 percent in muscle mass…
Great Cooperative games make the play experience deliberately difficult; the game shouldn't be a cake walk. Mr. Glass's decision, therefore, is for him to assume the role of the game and present himself in opposition to his students—the players. He does this by instructing his students (working in groups designed to…
During my last years on the Other Earth a system was invented by which a man could retire to bed for life and spend all his time receiving radio programs. His nourishment and all his bodily functions were attended to by doctors and nurses attached to the Broadcasting Authority. In place of exercise he received…
Ms. Spooner, a long-time game player, realizes that the Racing/Grid Movement mechanic is the right choice for her students because it is particularly good at helping to assess highly granular pieces of content or skills. She envisions a game in which her students are divided into two- or threeperson teams. She wants…
Trump is not behaving as a president who will become master of the White House in a month. He bears no sense of how to lead a superpower. Even the US military did not use the term "steal" to describe the move by the Chinese navy. Trump's second tweet makes people worry that he will treat China-US relations as child's…
In a study of what makes video games so captivating, the key element was found to be variable ability-based challenge for players. Th e most popular games took players through increasingly challenging levels as they became more and more skillful. As skill improved, the next challenge motivated new mastery to just the…
We all know that exercise is important for a strong and healthy body. Less appreciated is that exercise seems also to be important for a strong and healthy mind, boosting memory and learning, while possibly delaying age-related cognitive decline [1]. How is this so? Researchers have assembled a growing body of…
If a problem seems familiar, try reasoning by Analogy. If you solved a similar one in the past, and can adapt to thedifferences, you may be able to re-use that solution. If the problem still seems too hard, divide it into several parts. Every difference you recognize may suggest a separate subproblem to solve. If it…
...regular endurance exercise leads to four major consequences: Increased ability of the heart to eject blood increased ability of the blood vessels to send blood to where blood is needed Increased number of capillaries (the vessels that deliver oxygen and ‘food’ to the muscles) increased size and the number of…
They found that, unsurprisingly, the people who did not exercise at all were at the highest risk of early death. But those who exercised a little, not meeting the recommendations but doing something, lowered their risk of premature death by 20 percent. Those who met the guidelines precisely, completing 150 minutes per…
Strong scientific evidence for this use Enhanced muscle mass / strength: Several high-quality studies have shown an increase in muscle mass with creatine use. However, some weaker studies have reported mixed results. Overall, the available evidence suggests that creatine does increase lean body mass, strength, and…
People who got some exercise, but not enough to meet the physical activity recommendations were still 20 percent less likely to die over a 14-year period than those who did not do any physical activity. (The recommendations say to do 150 minutes of moderate activity per week or 75 minutes of vigorous activity per…
In order to improve cardiorespiratory and muscular fitness, bone health, reduce the risk of NCDs and depression: 1. Adults aged 18–64 should do at least 150 minutes of moderate-intensity aerobic physical activity throughout the week or do at least 75 minutes of vigorous-intensity aerobic physical activity throughout…
A well-established, graded, inverse association exists between cardiorespiratory fitness (CRF) and risk of cardiovascular disease (CVD) as well as all-cause mortality in numerous healthy and clinical adult populations.1- 3 Compared with those classified in the lowest CRF category (<7.9 metabolic equivalents [METs])…