Listen in as Dr. Mike provides the answers to a wealth of health and wellness questions. Here you'll find the answers to a wealth of health and wellness questions posed by Healthy Talk fans.Listen in because what you come to know helps ensure healthy choices you can actually live with. Today on Healthy Talk, you wanted to know:I have two questions about breast cancer. First, does wearing a bra cause breast cancer? Second, do antiperspirants that contain aluminum cause breast cancer?A long time ago it was said that wearing a bra constricted the lymphatic flow in your breast tissue and increased your chances of developing cancer. So far, research shows the risk of breast cancer is the same, regardless of a woman's choice to wear a bra. A recent study published in October 2014 found no correlation between wearing a bra or not wearing a bra and breast cancer risk. If you're still concerned, you may want to consider getting fitted for a bra without underwire.Now, the second question, do antiperspirants that contain aluminum cause breast cancer... that is a little more complex. Aluminum is a metal and metal is known to cause oxidative stress. Oxidative stress is one of the major theories of aging and development of age-related diseases, including cancer.Adding and putting metals on and in your body on a daily basis isn't the greatest thing. You do need certain metals to live, but the concern lies with how much, and if you are overdoing it.When it comes to aluminum and breast cancer, there's no real evidence backing up these claims. If you are worried, you can switch your antiperspirant to one without any aluminum.My hot flashes aren't really that bad, but nevertheless, I'd really like to not have them. I've read some promising information on hops. What do you think?Dung quai, black cohosh, and estrogen replacement therapy are common relief for menopausal symptoms. However, hops along with another type of nutrient called lignins is shown to reduce hot flash symptoms better than the traditional way.If you have a health question or concern, Dr. Mike encourages you to write him at askdrmikesmith@radiomd.com so he can provide you with support and helpful advice.