What's Up Docs? How much exercise should you do?
Jan 20, 2026
Dr. Jo Blodgett, a senior research fellow and life-course epidemiologist at UCL, joins the hosts to discuss exercise's role in health. She emphasizes a holistic approach, advocating for daily movement beyond the gym. The 'active couch potato' phenomenon is explored, highlighting the dangers of prolonged sitting. Jo introduces 'exercise snacks'—short bursts of activity throughout the day as effective fitness boosters. Strength and balance exercises are also crucial for everyone, not just older adults. Her practical tips encourage making movement a seamless part of daily life.
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An Athlete Who Walks Between Meetings
- Jo Blodgett plays football four times a week and cycles to work.
- She also uses walks to break up long desk‑bound periods.
Move Over 24 Hours
- Think of movement across a full 24‑hour day, not just gym time.
- Small choices across the day shape health more than a single 30‑minute session.
The Active Couch Potato
- Xand admits to being an 'active couch potato' who cycles but is otherwise sedentary.
- Jo warns long sedentary stretches can negate some benefits and suggests breaking them up.