Poor posture can lead to back pain by causing problems with your intervertebral discs and joints, as well as your muscles.
Poor posture can place stress on your spine that can lead to anatomical
changes in the spine such as shifting of discs and adjustments to the
natural curvature of the spine. These changes can ultimately cause back
pain due to the constriction of blood vessels and nerves, causing pain.
For example, standing or sitting in a position with your neck tilted too
far forward for prolonged periods of time (common when using a cell
phone) can add extra weight on the vertebra and strain the trapezius
muscles, which can result in a change to the natural curvature of the
spine. In other cases, such as sitting for long periods of time with
poor posture, extra weight from the upper body can be placed on
intervertebral discs of the lower back while they are unsupported. This
uneven distribution of weight can result in pain caused by disc bulging
in the spine and pinched nerves.
Additionally, with
prolonged poor posture, muscles can become tightened and overstretched,
leading to muscle fatigue and stiffness, causing pain. For example,
standing for long periods of time with your weight more on one foot than
the other can place extra pressure on one hip, which can overburden the
muscles in the lateral hip region, causing them to tighten, while the
muscles in the buttocks weaken. Over time, this will result in the
development of muscle imbalances in the pelvic area, resulting in muscle
strain in the lower back and causing pain. Similarly, a common poor
posture position in which a person is "stooped", or stands with their
pelvis tucked in and their back flat instead of naturally curved,
creates muscle imbalances and a misalignment of the spine resulting in
muscle fatigue and pain in the neck and back.
Answer:
The basic parts of a domestic violence cycle see an abuser threaten violence, strike his victim, apologize, and promise to change, before starting the cycle all over again. To break it down even more, simply take a look at a standard cycle of abuse wheel.
Answer: Alcohol leaves the body at an average rate of 0.015 g/100mL/hour, which is the same as reducing your BAC level by 0.015 per hour. For men, this is usually a rate of about one standard drink per hour.
Explanation:
Answer;
Explanation:
If it is possible to measure the time intervals between consecutive heart beat in milliseconds, and determine how the time intervals varies from time to time, then the value obtained is called Heart Rate Variability. It can be felt when pulse at the wrist is measured and deep breath taken and exhale afterwards.
Longer interval is observed during exhalation when the HR is long thus the heart slows down,while short intervals during fast beat of the heart,with fast HR.It can be detected by ECG through measurement of intervals between R waves( R-R).
HRV is regulated by ANS, through the sympathetic , which increases the heartbeat and therefore reduces the HRV, and the parasympathetic which reduces the heart beat and therefore increases the HRV, since the slower beats enabled easy measurements of intervals between consecutive heartbeats.
Therefore, the variance in the R-R waves intervals is determined by the parasympathetic nervous system which slow the heart beats for higher HRV values to be obtained.The answer is TRUE
