What’s the difference between sexual desire and arousal? How does the contraceptive pill affect your sex drive? Which hormone has recently been found to boost sexual arousal in both men and women?

S3:2 Do animals recognise when we are feeling the pressure? How can dogs help us when our stress hormones fail? And how has studying stress in horses helped us understand human hormones?

Is type 2 diabetes really a “lifestyle disease”? Why do some people develop diabetes even though they’re eating healthily while many obese people escape the disease? How can your environment shape your diabetes risk before you’re even born?

Do you ever feel tired and sluggish, and find yourself putting on a few pounds? Or perhaps you’re anxious, irritable, and no matter how much you eat, you're just not gaining weight? Does Dr Google think your thyroid is to blame for all your woes?

Should I be concerned about growth hormones in a cow's milk cappuccino? Are the plant oestrogens in a soya latte affecting my risk of cancer? Will almond milk damage my thyroid? 

Could 3D printed pancreases be the cure for type 1 diabetes? Will AI take over in the IVF clinic? How and why have researchers created a remote controlled adrenal gland?