1.Love is part of evolution
Love is a survival mechanism embedded in our DNA. Thanks to it, we enjoy reproducing, caring for offspring, and communicating with other people. All this helped us survive in difficult times and preserve humanity as a species.
Not everyone needs love, both romantic and parental, to survive. For example, reptiles do not care about their offspring and abandon their young immediately after birth, and sometimes eat them. Mammals, on the other hand, have evolved to develop the limbic system, a brain structure that is also responsible for memory, emotions, and communication with others.

2.We need communication and support
The limbic system prepares us for life among other people. Thanks to it, mammals form family and friendship relationships in complex social groups. For example, a herd of elephants, a troop of monkeys, a pod of killer whales, packs of dogs, human tribes. Being in a group with others and receiving a sense of unity, protection and home from this is genetically embedded in us. We enjoy being with friends and loved ones, forming romantic relationships, and caring for children until they can support themselves entirely.

3. Touch improves health
Hugging your partner also has a similar effect due to the hormone oxytocin, which is released during this process. Research shows that high levels of this hormone are associated with low blood pressure.

4. The severity of loneliness
A person needs communication with others in order to feel good. When for some reason we do not have the opportunity to communicate with loved ones and friends, we often feel lonely, which affects our health.
The problem of loneliness is especially relevant during a pandemic, when we have to maintain social distance, refuse warm meetings and communicate only online. All this affects both our mental and physical health. Feelings of loneliness are associated with an increased risk of anxiety, depression and suicide. And social isolation increases the risk of heart disease and premature death.

5.Happy relationships make us healthier
In the era of a pandemic, the main source of physical and emotional contact becomes a spouse or partner. Your health and well-being depend on the quality of your relationship with your significant other. A number of studies in recent decades have revealed a correlation between a happy marriage, longevity and a reduced risk of disease. Married people tend to live longer and are less likely to experience depression. They are also more likely to live longer after being diagnosed with cancer and are less likely to have a stroke or heart attack.