Doubts and Meditation I am usually filled with common doubts (not necessarily doubts towards the dharma). My mind keeps forming thoughts that say: "Maybe things are like this! Maybe things are like that!" without much certainty. 

I wonder: Does meditation help with such doubts, namely by preventing them from arising? I noticed when I am concentrated in meditation, on the breath, that thoughts rarely arise, and that I'm focused on sensory perception rather than this type of speculation. 

Hence, does meditation remedy such hesitation and doubtful thoughts? If so does it do so by preventing them from arising? Or, does it do so by another mechanism.

Thank you.
You can practice the 4 Foundations of Mindfulness:


  These, bhikshus, are the four focusses of mindfulness that are to be cultivated for the abandoning
  of these five mental hindrances.


(Satipaṭṭhāna) Nīvaraṇa Sutta

Also,


  one understands and sees, as it really is, one’s own benefit,
  
  one understands and sees, as it really is, others’ benefit,
  
  one understands and sees, as it really is, the benefit of both


(Nīvaraṇa) Saṅgārava Sutta

One also can try developing the 7 Enlightenment Factors to overcome it. See: Āvaraṇa Nīvaraṇa Sutta

Wise attention can be used to overcome dought:


  Bhikshus, no other single thing do I see, on account of which unarisen doubt does not arise,
  and arisen doubt is abandoned, as on account of this, bhikshus, namely, wise attention.
  
  Bhikshus, through wise attention, unarisen doubt does not arise, and arisen doubt is abandoned.


Nīvarana,pahana Vagga

Also, do not feed dought. See: (Nīvaraṇa Bojjhaṅga) Ahara Sutta

Also see: Nivarana and Vicikiccha by Piya Tan