Recent Blog Articles
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/15477/conversions/59f61b05-2e23-463a-a0f7-b8aef6addd73-micro.jpg)
Testosterone-blocking drugs boost heart disease risk when given in combination
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/15472/conversions/9f706d6e-3ba5-441f-a1ce-d93af96cdb5d-micro.jpg)
Parenting isn't easy: Two important skills can help
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/14937/conversions/fcff561e-5fc9-4fbd-aac0-b9ea3778052b-micro.jpg)
Does sleeping with an eye mask improve learning and alertness?
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/15415/conversions/2acee670-1e43-413e-a07b-437512d22803-micro.jpg)
Do tattoos cause lymphoma?
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/14051/conversions/dea50ed5-99ea-4779-aa5b-56fae11aaa92-micro.jpg)
Hot weather hikes: Staying safe when temperatures spike
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/15405/conversions/f22b5f3d-fd64-479d-b10a-b2409347f160-micro.jpg)
Cannabis drinks: How do they compare to alcohol?
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/15404/conversions/ccd2e44a-96c4-492f-a05c-c2706549efc0-micro.jpg)
What is Lewy body dementia?
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/15083/conversions/2fa8315b-f48e-43fb-8b56-d681a1715343-micro.jpg)
Dog bites: How to prevent or treat them
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/15386/conversions/33679f9f-8065-4e13-a188-2ca67472b36f-micro.jpg)
Ever read your medical record? Here's why you should
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/14810/conversions/778f3d8c-0b73-420c-8d03-e8542d49660d-micro.jpg)
Shining light on night blindness
Harvard Health Experts and Contributors
List of Experts
![photo of Victor A. Lopez-Carmen, MPH](https://d2icykjy7h7x7e.cloudfront.net/authors/0TzZ9Ri7BrsWhDPLFNTybsOIa0oryWvf9rt5W4CY.jpg)
Victor A. Lopez-Carmen, MPH
Guest Contributor
![photo of Kevin R. Loughlin, MD, MBA](https://domf5oio6qrcr.cloudfront.net/medialibrary/9794/KRL-White-Jacket-2.jpg)
Kevin R. Loughlin, MD, MBA
Contributor
![photo of Vasanti Malik, ScD](https://domf5oio6qrcr.cloudfront.net/medialibrary/9672/Vasanti_Malik.jpg)
Vasanti Malik, ScD
Contributor
![photo of Anant Mandawat, MD](https://domf5oio6qrcr.cloudfront.net/medialibrary/8658/MANDAWAT.ANANT_.003.jpg)
Anant Mandawat, MD
Contributing Editor
![photo of Nandini Mani, MD](https://domf5oio6qrcr.cloudfront.net/medialibrary/8684/nandinimani.jpeg)
Nandini Mani, MD
Contributing Editor
![photo of Brad Manor, PhD](https://domf5oio6qrcr.cloudfront.net/medialibrary/9936/HRC_081913_30.jpg)
Brad Manor, PhD
Contributor
![photo of JoAnn Manson, MD, DrPH](https://d2icykjy7h7x7e.cloudfront.net/authors/u8sVpXSyzGZBI3qXbd0z8H6VyaQh2f4Knimuhtpp.jpg)
JoAnn Manson, MD, DrPH
Editorial Advisory Board Member, Harvard Health Publishing
![photo of Dieter Manstein, MD, PhD](https://domf5oio6qrcr.cloudfront.net/medialibrary/10078/Dieter-Manstein-200x300-1.jpg)
Dieter Manstein, MD, PhD
Contributor
![photo of Shannon Manzi, PharmD](https://domf5oio6qrcr.cloudfront.net/medialibrary/9044/Manzi_ED-headshot.jpg)
Shannon Manzi, PharmD
Contributor
![photo of Julia Marcus, PhD, MPH](https://domf5oio6qrcr.cloudfront.net/medialibrary/10194/Marcus_Julia_8282_HiRes-scaled.jpg)
Julia Marcus, PhD, MPH
Contributor
![photo of Luana Marques, PhD](https://domf5oio6qrcr.cloudfront.net/medialibrary/9513/LuanaMarques4.3.18.jpg)
Luana Marques, PhD
Contributor
![photo of Mallika Marshall, MD](https://domf5oio6qrcr.cloudfront.net/medialibrary/8686/Malika-Marshall-headshot-1.jpg)
Mallika Marshall, MD
Contributing Editor
![photo of Gad Marshall, MD](https://d2icykjy7h7x7e.cloudfront.net/authors/Z2UwWntRcm0nGjVxoQP8zX1NSZQecDstxotmpcPP.jpg)
Gad Marshall, MD
Contributor
![photo of Gad A. Marshall, MD](https://domf5oio6qrcr.cloudfront.net/medialibrary/12131/Marshall-picture-1-24-18.jpg)
Gad A. Marshall, MD
Contributor
![photo of Peter T. Masiakos, MS, MD, FACS, FAAP](https://domf5oio6qrcr.cloudfront.net/medialibrary/10491/Masiakos-trauma-head-shot.jpg)
Peter T. Masiakos, MS, MD, FACS, FAAP
Contributor
![photo of Paul G. Mathew, MD, FAAN, FAHS](https://domf5oio6qrcr.cloudfront.net/medialibrary/9024/PaulMathewBWH-Headshot.jpg)
Paul G. Mathew, MD, FAAN, FAHS
Contributor
![photo of Elizabeth Matzkin, MD](https://domf5oio6qrcr.cloudfront.net/medialibrary/8934/matzkin-1.jpg)
Elizabeth Matzkin, MD
Contributor
![photo of Maria Mavrikaki, PhD](https://domf5oio6qrcr.cloudfront.net/medialibrary/9686/MavrikakiHeadshot198Jan1617.jpg)
Maria Mavrikaki, PhD
Contributor
![photo of Alice Maxfield, MD](https://domf5oio6qrcr.cloudfront.net/medialibrary/9902/Alice-Maxfield.jpg)
Alice Maxfield, MD
Contributor
![photo of Candice Mazon, MD](https://d2icykjy7h7x7e.cloudfront.net/authors/Ogerjm1yqEC3aCY8XysGOCpPbwDaK88HqOFofwog.jpg)
Candice Mazon, MD
Contributor
![photo of Claire McCarthy, MD](https://d2icykjy7h7x7e.cloudfront.net/authors/mvCBqecmOmDXOhy74hH3DviJmMAprZqhFgGbhTJL.jpg)
Claire McCarthy, MD
Senior Faculty Editor, Harvard Health Publishing
![photo of Chris McDougle, MD](https://domf5oio6qrcr.cloudfront.net/medialibrary/10095/McDougle2.png)
Chris McDougle, MD
Contributor
![photo of Katherine D. McManus, MS, RD, LDN](https://domf5oio6qrcr.cloudfront.net/medialibrary/8918/2013Kathy-McManus-headshot-2.jpg)
Katherine D. McManus, MS, RD, LDN
Contributor
![photo of Darshan Mehta, MD, MPH](https://d2icykjy7h7x7e.cloudfront.net/authors/XfVUDLNhMaAGhvJmm45SoJAZUm5b6n9QJkk2FAb1.jpg)
Darshan Mehta, MD, MPH
Contributor
![photo of Robert C. Meisner, MD](https://domf5oio6qrcr.cloudfront.net/medialibrary/9799/Meisner-Robert-2.jpg)
Robert C. Meisner, MD
Contributor
Recent Blog Articles
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/15477/conversions/59f61b05-2e23-463a-a0f7-b8aef6addd73-micro.jpg)
Testosterone-blocking drugs boost heart disease risk when given in combination
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/15472/conversions/9f706d6e-3ba5-441f-a1ce-d93af96cdb5d-micro.jpg)
Parenting isn't easy: Two important skills can help
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/14937/conversions/fcff561e-5fc9-4fbd-aac0-b9ea3778052b-micro.jpg)
Does sleeping with an eye mask improve learning and alertness?
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/15415/conversions/2acee670-1e43-413e-a07b-437512d22803-micro.jpg)
Do tattoos cause lymphoma?
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/14051/conversions/dea50ed5-99ea-4779-aa5b-56fae11aaa92-micro.jpg)
Hot weather hikes: Staying safe when temperatures spike
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/15405/conversions/f22b5f3d-fd64-479d-b10a-b2409347f160-micro.jpg)
Cannabis drinks: How do they compare to alcohol?
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/15404/conversions/ccd2e44a-96c4-492f-a05c-c2706549efc0-micro.jpg)
What is Lewy body dementia?
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/15083/conversions/2fa8315b-f48e-43fb-8b56-d681a1715343-micro.jpg)
Dog bites: How to prevent or treat them
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/15386/conversions/33679f9f-8065-4e13-a188-2ca67472b36f-micro.jpg)
Ever read your medical record? Here's why you should
![blog image 1](https://domf5oio6qrcr.cloudfront.net/medialibrary/14810/conversions/778f3d8c-0b73-420c-8d03-e8542d49660d-micro.jpg)
Shining light on night blindness