Question

How do you know if your heart is weak?

Answer 1

The human heart is one of the most vital organs in charge of sustaining life. It is a four-chambered muscular organ. The heart is roughly the size of a clenched fist. The human heart is one of the most robust and hardest working muscles in the human body, functioning throughout a person's lifespan.

Complete answer:
The human heart is located in the thoracic cavity between the lungs, slightly to the left of the sternum (breastbone). It originates in the embryonic mesodermal germ layer.
The heart's function in any organism is to keep blood flowing continuously throughout the body. This replenishes the oxygen supply and circulates nutrients throughout the cells and tissues.

The heart's primary functions are as follows:
- The human heart's primary function is to circulate blood throughout the body.
- Blood transports oxygen, hormones, glucose, and other components throughout the body, including the human heart.
- The heart also ensures that the body's blood pressure remains stable.

Within the body, there are two types of circulation: pulmonary circulation and systemic circulation. Aside from humans, most other animals have a heart that pumps blood throughout their bodies. Even invertebrates, such as grasshoppers, have a pumping organ similar to the human heart, though it does not function in the same way.

Symptoms of a weak heart are as follows:
- Fatigue
- Breathing difficulty
- Heartbeat irregularity
- Ankle and foot swelling

Note: Your heartbeat may be too fast, too slow, or irregular. Signs and symptoms of heart arrhythmia include:
- Your heart is fluttering.
- The heartbeat is racing (tachycardia)
- Heart rate is slow (bradycardia)
- Pain or discomfort in the chest
- Breathing difficulty
- Lightheadedness
- Dizziness
- Syncope (fainting) or near-fainting