According to the largest study on happiness ever conducted, carried out by Harvard University over nearly 85 years, quality relationships with others are essential to being happy. The research, which followed participants over decades, found that strong, positive connections with family, friends, and community played a central role in long-term well-being. Other happiness experts also highlight the importance of mindfulness — the practice of being fully present and aware of the current moment — as a key factor in finding contentment. Psychologist Delphine Py, interviewed by Top Santé, explained that the main obstacle to daily happiness is actually the brain. She said that "it's because our brain is not designed to make us happy but to keep us alive! The mechanisms it puts in place on a daily basis pursue a survival objective, not a well-being objective." This can lead to feelings of sadness or fatigue. According to Py, the key to accessing happiness is practicing gratitude. She suggests noting every day three things for which one is grateful, helping individuals become more aware of positive experiences and counter the effects of habituation, where people stop noticing good things over time. A study published in the Journal of Personality and Social Psychology has shown that people who feel a lot of gratitude are more optimistic and show more signs of well-being. Gratitude is also linked to less stress, and experts emphasize the importance of learning how to savor every moment of life. This idea is echoed by the Vietnamese Buddhist monk Thich Nhat Hanh, author of The Miracle of Mindfulness. In his 1975 book, he explains that "we do not need to go far to appreciate a blue sky, we do not need to leave the city to admire the smile of a child. Even the air we breathe should be a source of joy." To ensure a happy life, it is necessary to learn how to savor each moment and to open one's eyes wide. Whether through gratitude, mindfulness, or meaningful relationships, the path to happiness seems to lie in being fully present and appreciating the simple joys of everyday life.