Cardiologist Reveals Evening Habits That Could Protect Your Heart After 6pm

Your evening routine could have a bigger impact on your heart health than you realise. While many people focus on exercise, diet and regular health checks during the day, the habits we follow after dinner and before bedtime may also influence blood pressure, circulation and the way our cardiovascular system recovers overnight.

A cardiologist has highlighted several common nighttime behaviours that could place unnecessary strain on the heart. According to heart specialist Dr Francesco Lo Monaco, founder of the National Heart Clinic, avoiding certain habits after 6pm may support healthier blood vessels and improve the body’s natural recovery process during sleep.

With millions of people living with cardiovascular disease, understanding how daily routines affect heart health has become increasingly important. Small lifestyle changes, particularly in the evening, may help reduce avoidable stress on the cardiovascular system.

Here are six evening habits a cardiologist recommends avoiding to support better heart health.

1. Avoid using strong antibacterial mouthwash at night

Many people use mouthwash as part of their bedtime routine, believing it improves oral hygiene. However, some powerful antibacterial mouthwashes may have unintended effects on cardiovascular health.

Dr Lo Monaco explained that certain bacteria found naturally in the mouth play an important role in converting compounds from food into nitric oxide. This substance helps blood vessels relax and maintain healthy circulation.

When strong antibacterial products remove too many of these bacteria, it may affect nitric oxide production. Lower nitric oxide levels can contribute to reduced blood vessel flexibility and may influence blood pressure regulation.

This does not mean people should stop caring for their oral health. Regular brushing, flossing and appropriate dental care remain essential. However, choosing milder oral care products and avoiding unnecessary overuse of antibacterial mouthwash may be beneficial for some people.

2. Reduce blue light exposure before bedtime

Scrolling through phones, watching television or working on laptops late at night has become a normal part of modern life. However, exposure to bright blue light in the evening may interfere with the body’s natural sleep cycle.

Blue light can suppress melatonin production, a hormone that helps regulate sleep. Melatonin also acts as an antioxidant, helping protect cells from oxidative stress.

Dr Lo Monaco explained that reduced melatonin levels over time may contribute to increased stress on blood vessels.

Poor sleep quality is already linked with several cardiovascular risk factors, including higher blood pressure and increased inflammation. Creating a calmer evening environment by reducing screen time before bed may support both sleep quality and heart health.

Simple steps such as dimming lights, switching off unnecessary devices and following a consistent bedtime routine can help the body prepare for rest.

3. Avoid intense static workouts late in the evening

Exercise is one of the best ways to protect heart health, but timing and intensity can matter.

Certain static exercises, including long planks, wall sits and dead hangs, can temporarily increase blood pressure because they place significant strain on muscles while the body remains in a fixed position.

Dr Lo Monaco warned that intense late-night workouts may keep the nervous system activated when the body should be preparing to relax.

For many people, exercising earlier in the day may be more suitable. Evening movement such as gentle walking, stretching or light mobility exercises can provide benefits without placing excessive stress on the cardiovascular system close to bedtime.

People with existing heart conditions should always discuss exercise routines with a healthcare professional.

4. Be cautious with calming supplements before sleep

Many people use supplements or drinks marketed as relaxing nighttime aids. Green tea compounds such as L-theanine are often associated with relaxation, but supplements can affect individuals differently.

Dr Lo Monaco noted that substances influencing the nervous system may also affect heart rhythm, particularly when taken in unsuitable amounts or combined with other medications.

Natural products are not automatically risk-free. Supplements can interact with prescribed medicines, affect sleep patterns or influence heart function in certain circumstances.

Before starting any new supplement, especially if you have a heart condition or take medication, it is important to seek advice from a qualified healthcare professional.

5. Avoid prolonged breath-holding exercises

Breathing techniques have become increasingly popular for relaxation, stress management and improving sleep. When practised correctly, controlled breathing can be helpful for many people.

However, repeated or extended breath-holding may not be suitable for everyone.

Dr Lo Monaco explained that holding your breath for long periods can temporarily reduce oxygen levels and place additional demands on the heart, particularly in people with existing vascular or sleep-related concerns.

Gentle breathing exercises focused on slow, controlled breathing are generally considered safer than extreme breath-holding techniques.

6. Stop eating too close to bedtime

One of the biggest evening habits linked with heart health is late-night eating.

Dr Lo Monaco recommends leaving around three hours between the final meal of the day and going to sleep. Eating immediately before bed can force the body to remain active when it should be entering a recovery state.

Digestion requires energy and increases activity within the body. Late meals may interfere with sleep quality and can affect factors such as blood pressure regulation and metabolism.

Allowing time between eating and sleeping may help the cardiovascular system recover more effectively overnight.

A balanced evening meal, eaten earlier when possible, may support better digestion, improved sleep and healthier heart function.

Why evening habits matter for cardiovascular health

Heart health is influenced by many factors, including genetics, physical activity, diet, stress levels, sleep and daily routines.

While avoiding certain evening habits does not guarantee protection from heart disease, making healthier choices consistently can contribute to overall cardiovascular wellbeing.

Experts recommend focusing on proven heart-protective behaviours such as maintaining a balanced diet, staying physically active, avoiding smoking, managing stress and attending regular health checks.

Small changes to an evening routine may become part of a wider approach to protecting long-term heart health.

Sources

Information was informed by general guidance from recognised cardiovascular health organisations, including research on sleep, blood pressure, exercise and lifestyle factors associated with heart disease.

Medical Disclaimer

This article is for informational purposes only and does not replace professional medical advice, diagnosis or treatment. Individual health needs vary, and anyone with symptoms, existing heart conditions, concerns about blood pressure, or questions about supplements and exercise should speak with a qualified healthcare professional before making changes to their routine.