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I work as QA analyst in a software company. My work involves testing of applications. I have worked on lot of small projects. The problem i have started to face is of low alertness. For example i was writing a test report for one of my clients., i was asked by my colleague to omit some data from it. I nodded and then forgot that thing. Luckily he saw it and amended it. There are many countless incidents which make me feel very lost and distracted. It would be really helpful if you could provide me some high practical tips to become more focused and alert while performing my tasks.