no body doubt you about this because in as much as I know the small time frame can also be used to trade news and that is just all which is what I know,but all we are saying here is that its very risky for the newbie to trade in he small time frame and they need time to understand this time fame very wellNo best or worst time frame. Each of them have own function. Small time frame use to measuring volatility and enabling scalper to catch profit from every of ups and downs. While high time frame have function to reduce the noise and unnecessary movement in small time frame. In order to enabling traders to see the real major trend direction.