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Education is the key to the future: You've heard it a million times, and it's not wrong. Educated people have higher wages and lower unemployment rates, and better-educated countries grow faster and innovate more than other countries. But going to college is not enough. You also have to study the right subjects.
People with HIV are still stigmatized. The infection rates are going up. People are dying. The political response is appalling. The sadness of it, the waste.
The root cause of the looming energy problem - and the key to easing environmental, economic and religious tensions while improving public health - is to address the unending, and unequal, growth of the human population. And the one proven way to reduce fertility rates is to empower young women by educating them.
Given that the biggest rise in childhood obesity rates are occurring in children ages 3 to 5 years, we must modify our efforts to place an emphasis on prevention versus intervention.
The aging and declining population will have far-reaching impacts. Declining fertility rates will possibly increase immigration. The structure of family and society will inevitably change.
The rates of soda consumption in our poorest communities cannot be explained by individual consumer preferences alone, but rather are linked to broader issues of access and affordability of healthy foods in low-income neighborhoods, and to the marketing efforts of soda companies themselves.
Every time I hear someone making ignorant comments about the supposed 'evils' of homosexuality, I think about the true evil of the high suicide rates among gay and lesbian teens.
We can reduce these cancer rates - breast cancer, prostate cancer, colon cancer - by 90 percent or more by people adopting what I call a nutritrarian diet.
If you look in general at people who live in anarchy, they have quite high rates of death from either homicide or warfare or both. Anarchy is one of the main reasons for violence, and it may be the most important.
My work on human capital began with an effort to calculate both private and social rates of return to men, women, blacks, and other groups from investments in different levels of education.