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Humans are social creatures. Because of this, relationships with other people play a central role in every individual’s life. They provide a sense of belonging, meaning, intimate connections, and emotional support we all need. Babies and children need interactions with other humans to survive. Without contact with others and its benefits, many basic cognitive capacities will not develop at all. Even in newborns, deprivation of human contact is a strong source of distress. Because of all this, social relationships are crucial to everyone’s mental and physical health and well-being (Christensson et al., 1995; Singer, 2018).
We all know that our attractiveness can change depending on the circumstances. For example, when we’re tired or after sleepless nights, we might not appear as attractive as when fresh and well-rested. This difference will primarily reflect on our face, one of the most important parts of the human body for evaluating attractiveness.
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We are all aware that people of advanced age can often be forgetful, and their memory is no longer what it used to be. Tasks requiring speed and quick reactions are more difficult. Is there a way to prevent this?
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When lacking sleep, some drink coffee, some try to increase their physical activity to stay awake, and some visit the fridge. Most people have experienced this situation when they couldn’t get enough sleep, accompanied by a desire to eat more food than usual. But does lack of sleep really increase our appetite?
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Scientists have studied mental health problems for centuries. However, for most of this time, their focus has solely been on psychological symptoms because the scientific know-how needed to understand the complex biochemical mechanisms underpinning psychology was simply not there until now. Recent advances in biomedical technology allowed modern researchers to start mapping the biochemical mechanisms behind these disorders. One major topic of this type of research is stress-related disorders, such as major depressive disorder.
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