Prince Harry thinks young people are spending "too much time online".
The 33-year-old royal is concerned that the time young people spend on social media can be damaging to their mental health, as he compared the Internet to a "mental running machine" that cannot be stopped until the person decides to get off the websites.
He said: "People are spending far too much time online and it's like a mental running machine that they can't get off. You wouldn't put your body through such a workout."
But the flame-haired hunk doesn't think banning young people from using social media will help the situation, and believes people just need to "talk" to one another more often to discuss their mental health.
Speaking during a visit to a mental health charity discussion held at one of Copenhagen's leading chain of bakeries, Harry added: "It's crazy and scary. I'm the last person to say ban it but people are suffering from mental fatigue and getting burnt out. We all need to talk to each other more."
Prince Harry - who is currently on a royal visit in Denmark - also met ambassadors for Denmark's One of Us charity, all of whom had mental problems in the past but are now helping others.
Speaking to the ambassadors, Harry - who set up the Heads Together mental health charity alongside his brother Prince William and sister-in-law Duchess Catherine - said: "In the UK we found people were scared to talk about their problems but that is changing fast and it's now becoming normal for younger people to talk about mental health, whether it's bipolar, depression or losing a relative.
"You have all been in a dark place but have come through and your experiences are invaluable to help others. You are proof that you don't have to be a professional to make a difference and turn a negative into a positive."
Ambassador Troels Torp said afterwards that speaking to the Prince was "great", and praised the royal as "very kind and caring".
Troels said: "It was great to talk to the Prince as I thought he was an equal. You could see he had been in a dark place once himself because of his mother and that's why he can relate to us. He was very kind and caring and down to earth."
Tagged in Prince Harry