Hi, I used to eat slate pencils when I was my high school . I started addiction towards them after I got my first period. I used to eat boxes of slate pencils everyday. It did affected me my haemoglobin levels were low but now everything is fine . I'm scared of future like if it may cause stones in
kidney or stomach or any other dangerous disease like cancer. I have left eating eating them. It's been more than 9 years I stopped eating them. Will it affect me ? I used to travel by bicycle to school. Daily I used to ride bicycle for 2km. May be that exercise protected me. Recently, I have been thinking about my past mistakes and getting anxious about them . Kind advice and positive words will make a great change in my mind.