I have a colleague who is my age and we are quite friendly. Her jobs are very demanding and she gets a lot of pressure from management. I also know that there are family issues and that she has been suffering from a constant throat infection and feeling rundown for ages. I thought she would be better after a Christmas break but she looks like she has lost a lot of weight and looks pretty frail. She also isn't eating that much in work. She is always smiling but I know it is a mask as in texts to me, she does reveal that things are getting her down and she feels very stressed. What can I do to help?