I think it’s a, hopefully you get it right!
Chronic jetlag can cause cognitive deficits that can be permanent. This happens because the normal circadian rhythm of the body is disrupted. The endogenous system of circadian timing in the body adapts slowly. This disturbance can impair the physical and psychological health of the person.
No the amplitude of each waves are different on different cardiac cycles.
<u>Explanation:</u>
- The PQRST waves are used to represent the atrial and ventricular depolarization and repolarization. These waves are reflected in ECG.
- In this as the series, p occupies the first place then QRS complex and at last T wave. In the QRS wave complex, R wave is said to be the largest wave.
- The direction and amplitude of r wave depend on the electrical picture. The R wave represents the ventricles depolarization so it is the largest wave.
