Ep.05 - What Your Skin Reveals About Your Health | Dr. Sonali Kohli

In this episode of 4 Questions with Luke Coutinho, I’m joined once again by dermatologist Dr. Sonali Kohli after the response to our previous conversation. This time, we get straight into four important questions around skin, hair, hormones, aging and some of the health signals we often overlook. Can your skin, hair and nails reveal what is happening inside your body? We discuss hair fall, widening hair parting, pigmentation, skin tags and the possible connection with nutritional deficiencies and insulin resistance. We also talk about the changes women experience during perimenopause and menopause, including collagen breakdown, skin and hair changes, and why the foundations you build years earlier can influence how you age. Dr. Sonali also breaks down the impact of smoking, vaping and shisha on oxidative stress, skin and hair, and we discuss the growing trend of using nicotine for cognitive performance and longevity. Finally, we get into the obsession with glass skin and skin lightening, the risks of overusing certain products, and the truth behind glutathione injections and whether they can actually make your skin fairer. A practical conversation about understanding your skin beyond appearance and looking at the bigger picture of health, lifestyle and foundational wellness. In this episode: * What your skin, hair and nails may be telling you * Early signs of female pattern hair loss * Hair loss, hormones and insulin resistance * Perimenopause, menopause and collagen * Strength training and healthy aging * Smoking, vaping and shisha * Nicotine microdosing and longevity * The glass skin trend * Skin lightening and skin barrier damage * The truth about glutathione injections