The document discusses trends in volunteering research in the UK from 2000 to 2015, highlighting the changes in unpaid volunteering and participation rates among different demographic groups. It emphasizes that women, particularly from low-income households, contribute significantly more time to volunteering compared to men, though high-income individuals volunteer at higher rates overall. The document also explores barriers to volunteering, such as time constraints and the changing nature of volunteer roles in response to modern lifestyles.