DEAR MAYO CLINIC: I love to drink coffee. I often have multiple cups a day. Recently, I was diagnosed with diabetes and high blood pressure. My doctor advised that I may want to cut back on my beverage of choice, as it is ...
Mar 23, 2022
0
27
Electromagnetic energy in the brain enables brain matter to create our consciousness and our ability to be aware and think, according to a new theory developed by Professor Johnjoe McFadden from the University of Surrey.
Oct 20, 2020
58
4521
People who followed a diet of low energy density food such as vegetables, lean meat and rice were more likely to feel full than those who tried to restrict their calorie intake, according to research.
May 10, 2018
2
1039
Your skeleton is much more than the structure supporting your muscles and other tissues. It produces hormones, too. And Mathieu Ferron knows a lot about it. The researcher at the Montreal Clinical Research Institute (IRCM) ...
Nov 1, 2017
0
6014
Heart failure is often identified only when the heart has already deteriorated. This is in large part because the cause is unknown for about 70% of people who experience heart failure.
Feb 13, 2023
0
319
New research from the University of Michigan Life Sciences Institute has determined how a common holiday spice—cinnamon—might be enlisted in the fight against obesity.
Nov 21, 2017
2
4481
Estrogen is known to play an important role in the protection of women's hearts, but once women are postmenopausal and estrogen levels drop, they are at an increased risk of a number of diseases and conditions, including ...
Mar 10, 2023
1
3296
Epidemic-levels of fuel poverty affecting half of U.K. households will cause a "significant humanitarian crisis with thousands of lives lost and millions of children's development blighted," warn health experts in the latest ...
Sep 2, 2022
0
62
Adults could achieve global physical activity targets by walking inefficiently for just a few minutes each day, finds a study in the Christmas issue of The BMJ.
Dec 21, 2022
0
1026
Vitamin D deficiency may impair muscle function due to a reduction in energy production in the muscles, according to a mouse study published in the Journal of Endocrinology. Vitamin D deficient mice were found to have impaired ...
Apr 16, 2021
0
594
In physics, energy (from the Greek ἐνέργεια - energeia, "activity, operation", from ἐνεργός - energos, "active, working") is a scalar physical quantity that describes the amount of work that can be performed by a force, an attribute of objects and systems that is subject to a conservation law. Different forms of energy include kinetic, potential, thermal, gravitational, sound, light, elastic, and electromagnetic energy. The forms of energy are often named after a related force.
Any form of energy can be transformed into another form, but the total energy always remains the same. This principle, the conservation of energy, was first postulated in the early 19th century, and applies to any isolated system. According to Noether's theorem, the conservation of energy is a consequence of the fact that the laws of physics do not change over time.
Although the total energy of a system does not change with time, its value may depend on the frame of reference. For example, a seated passenger in a moving airplane has zero kinetic energy relative to the airplane, but non-zero kinetic energy relative to the Earth.
This text uses material from Wikipedia, licensed under CC BY-SA
