Can't finish one task
You sit down to do one thing. Ten minutes later you are doing something else, and the first job is still open and half done. By the end of the day, lots of things are started and few are done.
There are many common reasons. Poor sleep, stress, and a busy mind pull your focus apart. Hunger, pain, low iron, or a thyroid problem can do the same.
How the task itself feels matters too. A job that is dull, vague, or very big is hard to start and hard to end. Phones, alerts, and open tabs tug at you all day long.
When to see someone
See a doctor if this is new and getting worse, or if you also forget names and words, get lost on a route you know well, or feel your mind slowing down. Book a visit if you feel low or hopeless most days, if sleep has been bad for weeks, or if it began soon after a new medicine. Sudden confusion after a knock to the head needs care the same day.
Below is a list of remedies gathered for focus and concentration. Each one carries a grade that shows how much research stands behind it, not a promise about what it will do for you. Read the grade first, and ask your doctor or pharmacist before you mix anything with medicine you already take.



