It was difficult to concentrate at work.

Now that's not what most students do. Instead, they put off the tough courses until later in the evening when they are more fatigued. It's more difficult to concentrate when you're tired. Reverse that. Hard courses at peak energy times. Easier ones later. This alone can help to improve your concentration.

Finding it difficult to concentrate

If you are tired it can be more difficult to concentrate and to absorb information.

Finding it difficult to concentrate? - The Times of India

If you are not quite sure what you are supposed to be doing or why you are doing it then it will be difficult to maintain concentration. You could try to define the task in terms of its content and purpose, and then to make a realistic estimate of how much time and effort will be required to do it.

Finding it difficult to concentrate! Argh!? | Yahoo Answers

It is much more difficult to concentrate if our surroundings keep intruding on our awareness, perhaps because it is noisy, too hot or too cold, the furniture is uncomfortable or the people around us are stressing out.

I find it very difficult to concentrate on a task, if people are talking in the
Another reason some children find it difficult to concentrate on homework is the mental transition from school to home. A school day is generally very structured, with strict adult supervision and time management. Once a child returns home from school, however, he or she tends to adjust to a less regimented part of his or her day. The idea of working on school-related projects while in a home environment often calls for a different mindset. This is why many parents encourage their children to concentrate on homework during the transition period from school to home. It can be very difficult for a student to focus on schoolwork once he or she has been home for a few hours.It's not a simple answer. In the beginning I was of course very negatively affected by tinnitus and as a result it became very difficult to concentrate, especially on my music. So, how was I able to overcome this? Symptoms of Clinical Depression: Clinical depression is signaledby persistent change in a person's feelings and behavior that are often misunderstood orignored. Typical changes include sad or empty feelings, slowed behavior, and changes ineating and sleeping patterns. People with this illness often feel down on themselves andhopeless about future. Many find it difficult to concentrate on work or studies, feelguilty or anxious, cry often or become irritable over little things. Others lose interestin friends, sex and other activities that had given them pleasure in the past. They maycomplain about physical aches and pains-backaches, headaches, and stomachs problems-forwhich no medical explanation can be found.
I also find it very difficult to concentrate the moment i look at my book after 5 ..

Hannibal - Sometimes is difficult to concentrate.

One reason it can be difficult to concentrate on homework is because a student's home and classroom environments are rarely similar. A classroom is designed to contain very few distractions or creature comforts, while a student's home is designed for different purposes, from sleeping to entertaining to eating. Setting up an area in the home for purposes of schoolwork can help a student concentrate on homework without the distraction of siblings, parents, friends or television. A home office or spare bedroom should be an improvement over a child's distraction-filled bedroom or a communal living room.

'I find it difficult to concentrate in my open-plan work space' - Telegraph

ADHD Makes It Difficult to Concentrate on Conversations

Sometimes the hurt is very deep, such as when a spouse or a parent , or when we are victims of crime, or when we’ve been . Anyone who has suffered a grievous hurt knows that when our inner world is badly disrupted, it’s difficult to concentrate on anything other than our turmoil or pain. When we hold on to hurt, we are emotionally and cognitively hobbled, and our relationships suffer.

Is it difficult to concentrate during the 3rd trimester and postpartum?

Finding it difficult to concentrate

We have reported our attempts for active path selection of microbubbles by acoustic radiation forces, where we have investigated to control microbubbles by forming multiple focal points of continuous wave using a matrix array transducer. However, because those focal points were located to sweep microbubbles along the slope of sound pressure, it was difficult to concentrate microbubbles against the direction of flow. To produce attractive force to concentrate microbubbles in flow, we formed time-shared acoustic field of two focal points with phase variation. We have succeeded to concentrate microbubbles in water flow utilizing two focal points with opposite phase, where streamline of microbubbles was clearly confirmed in a thin channel. Also we confirmed induction performance using an artificial blood vessel with Y-form bifurcation, where induction rate to a desired path was calculated and varied according to the emission pattern of the focal points in time-shared acoustic fields.