Key findings:

• Among young adults (aged 15 to 24 years), females at 4.4% were three times as likely as males (1.4%) to report bad or very bad health in 2025.
• Younger respondents reported higher rates of poor general mental health. Females aged 15 to 24 years had the highest prevalence, with one in eight (12.8%) rating their mental health as bad or very bad.
• Among 15 to 24 year olds in 2025, 7.7% of males received a diagnosis of autism compared with 4.5% of females.
• In 2025, the highest rate of obesity was among those aged 55 to 64 years with 30.6% of females and 29.3% of males in this age group being classified as such.
• Adults aged 55 to 64 years were the most likely to drink alcohol at least once a week at 50.1%. Young adults aged 15 to 24 years were the least likely to drink alcohol weekly at 24.1%.
• Males were more likely to be daily smokers of tobacco than females. Almost a quarter (24.0%) of males aged 35 to 44 years were daily smokers of tobacco in 2025, the highest rate of any age group.
• One third (32.5%) of females aged 15 to 24 years who used social media reported it had a negative impact on their mental health compared with 24.9% of males the same age.

Alcohol section
Almost four in ten (38.9%) people reported consuming alcohol at least once a week in 2025. Across every age group, men were more likely than women to report drinking alcohol at least once a week. Adults aged 55 to 64 years were the most likely to drink alcohol at least once a week with 50.1% of them saying they do. Young adults aged 15 to 24 years were the least likely to drink alcohol weekly at 24.1%.

Smoking and Vaping section
One in eight (11.9%) people reported being daily smokers in 2025. Males were more likely to report being daily smokers of tobacco than females. Almost a quarter (24.0%) of males aged 35 to 44 years were daily smokers of tobacco, the highest rate of any age group and twice the rate for females of the same age (12.5%). In terms of vaping, 6.9% of people reported being daily vapers in 2025. Daily vaping was more common among younger adults. Females aged 25 to 34 years were the most likely to be vaping daily at 12.8%.

Cannabis section
Cannabis use was most prevalent among younger male adults, with around one in six males aged between 15 and 34 years having used cannabis in the past 12 months.