What's happening to my hair? -- How does aging affect my hair? -- How do I create a foundation for healthy hair growth? -- How does my hair grow, and why do I lose it? -- How do my scalp and strands become dehydrated? -- What can I do about hair loss and thinning? -- Will trimming make my hair grow faster? -- How can I get a younger scalp? -- What do I need to know about treatment? -- Can I and should I add hair? and how? -- How can I protect my hair while exercising? -- What can I do about gray hair? -- What do I need to know about hair coloring? -- What if I want to straighten or curl my hair?.