Jack McGrath lost his brother to suicide in 2010. The two had been close, the Ireland front row's sibling always attended his games.
The loss affected him deeply - it induced feelings of anger and anxiety in McGrath.
Over time, he realised the benefit of not keeping feelings bottled up.
Speaking in a video for a new Irish Rugby Players' Union campaign titled 'Tackle Your Feelings' the Leinster relates his experience of how sharing your emotions can be like a 'gas valve releasing'.
It was like a gas valve releasing when I started to speak about how I felt. It can be the smallest thing that you say to somebody that can make you feel better. The longer you keep it bottled up, the worse it’s going to get. Nobody is going to slag you for feeling a certain way. It’s human nature. After what happened to my brother I think it’s really important to be open about mental health.
You can watch Jack McGrath speak about the loss of his brother below.
On the Tackle Your Feelings website, you can also see Irish women's player Hannah Tyrrell speak about her struggle with self-harm and bulimia.