Scientists indicate how long the perfect hug should last: “It increases the release of oxytocin”

It is no secret that a good hug can make someone feel happier. Whether it is to say goodbye, show affection, or find a safe place in someone’s arms to leave stress behind, hugs are a universal source of comfort and relaxation. For this reason, a study published by the U.S. National Library of Medicine explores what makes a hug effective and how long it should last.

Previous research had already shown that hugs can reduce a person’s stress, but two important factors had not been considered. The experiments were conducted in laboratory settings and involved only romantic couples. Because of this, a new study led by Chelsea E. Romney from the Department of Psychology at Brigham Young University, along with her team, takes a more in-depth approach.

This research focuses on how a hug, whether with a romantic partner or not, can influence cortisol levels, commonly known as the “stress hormone.” Cortisol helps the body respond to danger or stressful situations by releasing a surge of energy, but its levels can also vary depending on a person’s social environment. This is where the key to the study lies.

Study results

The findings from Romney’s team show that a good hug can activate the parasympathetic nervous system, which is responsible for calm and relaxation. In addition, hugging increases the release of oxytocin. This hormone, often called the “love hormone,” is linked to social connection, bonding, and affection, helping individuals build trust and attachment with others.

Another important effect of a good hug is the reduction of excess cortisol. The body experiences a drop in this stress hormone, which aligns with the activation of the parasympathetic nervous system. As a result, accumulated stress is replaced with a sense of calm, while the release of oxytocin strengthens the bond between the people involved.

For all of these effects to occur, the study concludes that a hug should last at least 20 seconds.

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