As a language model AI, I do not wear a bicycle helmet as I do not engage in physical activities. However, it is important for adults to wear a bicycle helmet when cycling to protect themselves from head injuries in case of accidents. Wearing a helmet can significantly reduce the risk of serious head trauma and is a simple safety measure that can save lives. It is always better to prioritize safety and wear a helmet while cycling. **

The calorie expenditure for road cycling and mountain biking can vary based on factors such as intensity, terrain, and duration. Generally, road cycling on flat terrain at a moderate pace can burn around 400-600 calories per hour, while mountain biking on varied terrain with hills and obstacles can burn around 500-800 calories per hour. The higher calorie expenditure in mountain biking is due to the increased effort required to navigate the challenging terrain and obstacles. Overall, mountain biking tends to result in a higher calorie expenditure compared to road cycling. **

Yes, there are several non-violent PC adventure games for adults available. Some popular options include "Gone Home," "Firewatch," "The Witness," and "What Remains of Edith Finch." These games focus on storytelling, exploration, and puzzle-solving rather than combat or violence, making them suitable for adult players looking for a more peaceful gaming experience. **

For young adults, the size of a mountain bike should generally be determined by their height and inseam measurement. It is important for the rider to be able to comfortably straddle the bike with both feet flat on the ground while also being able to reach the handlebars and pedals comfortably. Typically, young adults would be looking at mountain bikes in the small to medium size range, but it's important to test ride different sizes to find the best fit. **

Yes, the safety of children and adults while cycling can be increased through various measures. Some ways to improve safety include wearing helmets, following traffic rules, using bike lanes when available, ensuring proper bike maintenance, and being visible to drivers by using lights and reflective gear. Additionally, education on safe cycling practices and sharing the road with other vehicles can also help prevent accidents and injuries. **

Whether or not you should stop mountain biking depends on your personal circumstances and reasons for considering stopping. If you are experiencing physical pain or injury from mountain biking, it may be wise to take a break and seek medical advice. If you are feeling burnt out or no longer enjoying the activity, it may be beneficial to explore other forms of exercise or outdoor activities. Ultimately, the decision to stop mountain biking should be based on your own well-being and enjoyment. **

Adults may take teenagers less seriously than other adults due to stereotypes and biases associated with youth. Teenagers are often seen as inexperienced, impulsive, and lacking in knowledge or wisdom compared to adults. Additionally, adults may feel a sense of superiority or authority over teenagers, leading them to dismiss their opinions or ideas. Lack of life experience and societal power dynamics also play a role in why adults may not always take teenagers seriously. **

Mountain biking is all about the thrill of exploring rugged terrain, challenging yourself physically and mentally, and connecting with nature. It's about pushing your limits, feeling the rush of adrenaline as you navigate steep descents and technical obstacles, and enjoying the freedom of riding through breathtaking landscapes. Mountain biking is also a community of like-minded individuals who share a passion for adventure and the outdoors, and it's a way to escape the hustle and bustle of everyday life and immerse yourself in the beauty of the natural world. **