Marvin OnumonuAviva’s Story of Health research found that 25 to 34-year-old workers rated their mental health higher than other age groups, with three quarters saying it was good or excellent.
Happiness among this group stood at 73%, compared to 59% overall.
Good health was linked to relationships, community involvement and having a sense of belonging.
28% of 25 to 34s took part in community groups, clubs or social activities, compared to 15% across all ages.
73% of 25 to 34s volunteered, with 20% doing so through their employer.
The average for all age groups was 43%.
68% said they felt they belonged in their local community, the highest of any age group.
73% intentionally spent time in nature to support wellbeing, compared to 65% overall.
66% of all ages who rated their mental health as good said they felt a sense of belonging in their community, but only 20% of those with poor mental health felt the same.
Dr Subashi M, medical and sustainability director at Aviva Health UK, said: “Social connection is one of the most powerful drivers of health and wellbeing.
“Whether it’s a chat with a colleague, support from family, or simply feeling part of a community, these moments of connection can help lift mood, reduce stress, and build resilience.
“Employers have a vital role to play in fostering these connections.”
Dr Subashi M added: “The workplace should be a space of psychological safety, where people feel seen, heard, and valued.
“Wellbeing isn’t just about individual habits—it’s about the people around us, and the strength we draw from them.”
