On Valentine’s Day, displays of affection and feelings become more evident, and it’s not just because of the celebration. Science shows that love triggers a series of chemical and hormonal changes that directly affect the body, especially the heart.

According to cardiologist Dr. Roberto Yano, emotions triggered by emotional bonds activate biological mechanisms capable of altering heartbeat, blood pressure and even hormonal release.

“When a person falls in love, the body releases substances such as dopamine, adrenaline and oxytocin. This generates noticeable physical responses, including accelerated heartbeat, a feeling of euphoria and even changes in blood pressure”, he explains.

Does the heart really “speed up”?

The famous “heart racing” feeling when meeting someone special is not just a romantic metaphor. It occurs due to the activation of the sympathetic nervous system, responsible for the alert and arousal responses of the body. “Falling in love activates brain regions linked to reward and pleasure, but the heart responds directly to these emotional stimuli”, explains Dr. Roberto Yano.

This activation of the sympathetic nervous system also generates other sensations. “In addition to the temporary increase in heart rate, some people may also experience butterflies in the stomach, sweaty hands, rapid breathing and difficulty concentrating during intense phases of emotional involvement”, adds the doctor.

Love also affects cardiovascular health

Healthy romantic relationships can also bring important benefits to the heart in the long term. Emotionally supported people tend to have lower levels of chronic stress, better blood pressure control and lower cardiovascular risk.

“Emotional balance directly influences the heart health. Healthy relationships help reduce high levels of cortisol, a hormone associated with stress. On the other hand, situations of intense emotional suffering can also affect the body”, highlights the cardiologist.

Emotions and health go together

According to Dr. Roberto Yano, cardiovascular functioning is deeply connected to people’s emotional state, and developing emotional self-control is one of the factors in preventing heart conditions.

“The heart is not just a mechanical organ, it constantly responds to our emotions, stress levels and the way we live our relationships; therefore, paying close attention to emotions helps to take care of the heart”, he concludes.

By Angela Rocha