How Hormones Affect Heart Health
When we think of heart health, we often focus on diet, exercise, and family history. But one factor that’s sometimes overlooked is hormones. Hormones play a key role in regulating how your heart functions – from your pulse and blood pressure to how your body handles stress.
Whether you’re navigating menopause, managing a thyroid condition, or experiencing hormonal shifts for other reasons, understanding this connection can help you take better care of your heart.
Disclaimer:Â This article provides general information and is not a substitute for medical advice. If you have any questions or concerns about your heart or heart health, you should contact your healthcare provider.
The Heart-Hormone Connection
Hormones act as messengers in the body, helping to control a wide range of systems, including the cardiovascular system. When hormones are imbalanced or fluctuating, they can influence your heart rate, rhythm, and even how blood vessels contract.
Some of the most well-known hormonal links to heart health involve oestrogen, thyroid hormones, and cortisol (the body’s main stress hormone).
What Happens in the Body During Each Event
During menopause, oestrogen levels naturally decline. Oestrogen has a protective effect on the heart, helping keep blood vessels flexible and supporting healthy cholesterol levels.
As this hormone drops:
- Blood pressure may rise
- LDL (bad) cholesterol may increase
- Blood vessels can become stiffer
- The risk of heart disease slowly climbs
Some women also report symptoms like palpitations, hot flashes with racing heartbeats, or chest discomfort during this time. While these symptoms are often benign, it’s important not to ignore them especially if they’re new or frequent.
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Thyroid Disorders and Their Role in Heart Rhythm
The thyroid gland produces hormones that regulate your metabolism and energy use. Both overactive (hyperthyroidism) and underactive (hypothyroidism) thyroid conditions can impact heart health.
- Hyperthyroidism can cause a rapid heart rate, palpitations, and increased risk of atrial fibrillation.
- Hypothyroidism may slow your heart rate and raise cholesterol levels, increasing your risk of heart disease over time.
Because thyroid-related heart symptoms can mimic other conditions, diagnosis often involves blood tests and monitoring of heart activity.
Other Hormonal Conditions That May Affect the Heart
- Polycystic Ovary Syndrome (PCOS): Can raise the risk of high blood pressure and insulin resistance.
- Diabetes (Insulin hormone): Poorly managed diabetes significantly increases heart risk.
- Stress (Cortisol): Chronic stress raises cortisol levels, which can increase blood pressure and inflammation.
- Testosterone Imbalance (in men and women): Can affect cholesterol, blood pressure, and fat distribution.
Time to Check Your Heart?
If you’ve been experiencing symptoms like palpitations, fatigue, or chest discomfort, especially during times of high stress, it may be worth investigating further.
Our ambulatory ECG monitoring allows you to test at home, giving you a clear picture of your heart health.
Symptoms That Could Signal a Hormonal Imbalance
- Palpitations or irregular heartbeat
- Fatigue or low energy
- Feeling hot or cold often
- Unexplained weight changes
- Anxiety, irritability, or mood swings
- Changes in menstrual cycle (in women)
When to Get Tested: Bloods, ECGs, and Beyond
Your GP can run a simple blood test to check hormone levels (thyroid, oestrogen, etc.). In some cases, they may also recommend an ECG Heart Monitor to assess how your heart is responding.
Our ambulatory ECG monitoring service doesn’t require a referral – simply order and the device will be sent directly to your home.
In Summary
Hormones and heart health are closely connected, and changes in one often affect the other. If you’re experiencing new symptoms or going through a stage of hormonal change, don’t ignore what your body is telling you. With the right tests and monitoring, you can get the clarity and support you need to protect your heart.
