Brazilian Experts Discuss Causes and Treatments of Hair Loss on CNN

In a CNN Brazil program "CNN Sinais Vitais – Dr. Kalil Entrevista" aired on a Saturday, Dr. Roberto Kalil hosted dermatologist Dr. Letícia Nanci and endocrinologist Dr. Denise Iezzi, both from Hospital Sírio‑Libanês. They explained that male and female alopecia differ: women usually retain the frontal hairline and experience diffuse thinning, while men develop distinct receding patterns.

The specialists identified hormonal factors such as di‑hydrotestosterone, thyroid disorders, nutritional deficiencies, and certain medications (e.g., lithium, older beta‑blockers) as common triggers. Lifestyle habits, stress, smoking, and cosmetic procedures like bleaching or straightening can also aggravate hair loss. Treatment options discussed include oral medications, vitamin supplements, micro‑infusion of drugs into the scalp, laser therapy, and, for men, hair‑transplant surgery, emphasizing that approaches are tailored to the patient’s sex and age.