Answer:
GnRH signals the pituitary gland to release two puberty hormones into the bloodstream: LH and follicle stimulating hormone (FSH). In boys, LH and FSH work together to get the testes to begin producing testosterone, the hormone responsible for the physical changes of puberty and the production of sperm.
Myofibrils are bundles of contractile filaments which are arranged in parallel groups in thecytoplasm of striated muscle cells.
The statement that myofibrils do the actual movement during exercise is true. because the main function of the myofibril is to perform muscle contraction, and muscle contractions are the actual movements of the muscles.
Answer:
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Some tips for training for a marathon, for example could be running approximately 5 kilometers, to reach the end of a half marathon you need a more advanced physical and mental capacity that will only be achieved with constant training. To be prepared and endure it is necessary dedication and constant work for at least 5 weeks. We could start with a short series of training, for example distances not greater than 400 meters, this will help to influence the technique, also the strength. If we dedicate this type of training one day a week, we improve the speed and pace of the race. Another type of training is the background. This type of training aims to run a greater distance or more time than in the rest of your workouts of the week. It is not necessary that they be over the distance of competition but they do approach that one and its frequency must be weekly or every 6 days of training.
The only energy-rich connection that our muscle can have immediate form for a contraction is a substance called ATP, whose decomposition into ADP and phosphorus generates the energy needed to perform the movement. Since we do not have many molecules of this ATP in muscle, it is necessary to continuously generate this element to get the necessary chemical energy and therefore the subsequent mechanical energy. The ways to obtain this energy in training is through two ways: aerobic and anaerobic. In the first one there is a sufficient amount of oxygen for the oxidation of glycogen and fatty acids. In anaerobic oxygen supply is insufficient for oxidation, due to a high load intensity, and therefore the energy is obtained anaerobically, that is, without the presence of oxygen.
Explanation:
Answer: It is made by an advertiser who is paid to make claims.
If they are being paid, it is likely that their claims will be biased.
A way to improve or maintain psychological health would be eating a balanced diet, getting enough sleep, taking breaks from social media, and practicing meditation or mindfulness.
Something that has a negative impact on psychological health could be social media since we are surrounded by negative beauty standards and hateful influences and comments.
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