Respuesta :
1. Physical activity:
- Increase: Engaging in physical activity or exercise can elevate the pulse rate. When the body requires more oxygen and energy during exercise, the heart needs to pump more blood to meet the demand, leading to an increase in pulse rate.
- Decrease: On the other hand, when physical activity decreases or during rest, the pulse rate tends to decrease as the body's oxygen and energy needs decrease.
2. Stress and emotions:
- Increase: Stress, anxiety, or intense emotions can trigger the release of adrenaline, which can stimulate the heart to beat faster, increasing the pulse rate.
- Decrease: Conversely, relaxation techniques or calming activities can help lower stress levels and reduce the pulse rate.
3. Medication or substances:
- Increase: Certain medications, stimulants like caffeine, or substances like nicotine can lead to an increase in pulse rate as they can affect the heart's functioning.
- Decrease: Conversely, some medications or substances may have a calming effect on the heart, leading to a decrease in pulse rate.
4. Body temperature:
- Increase: A rise in body temperature, such as during a fever or when exposed to heat, can cause an increase in pulse rate as the body works harder to regulate its temperature.
- Decrease: Conversely, a lower body temperature or cooling down can help decrease the pulse rate.
5. Dehydration or hydration:
- Increase: Dehydration can cause the blood volume to decrease, prompting the heart to beat faster to maintain blood flow to vital organs, resulting in an increased pulse rate.
- Decrease: Proper hydration helps maintain adequate blood volume, allowing the heart to work more efficiently and potentially lowering the pulse rate.
