The phrase "are often sensitive to" is correct and usable in written English.
It can be used to describe a tendency or inclination to react emotionally or thoughtfully to certain stimuli or situations.
Example: "Children are often sensitive to changes in their environment, which can affect their behavior and mood."
Alternatives: "tend to be responsive to" or "are frequently aware of".
TEMPOS structures are often sensitive to temperature, light, humidity and organic gases.
The quantified values are often sensitive to threshold area specified for initiation of streams to demarcate the network, and to the position of outlet of a catchment.
Low-frequency structures, such as footbridges and long-span floors, are often sensitive to variations in dynamic loading induced by pedestrians.
Gaseous components or gasborne particles in flows are often sensitive to mid range temperatures, whereby unintended side products or aggregated particles develop during cooling processes.
For example, in problem-solving tasks, people are often sensitive to crucial clues of which they are quite unaware, and they often provide patently confabulated accounts of the problem-solving methods they actually employ.
Areas characterized by widespread erosion such as badlands are often sensitive to anthropic modifications and of large interest in the analysis of the topographic determinants of land use change.
Coagulase negative Staphylococci was often sensitive to Gentamicin (72.0%) but Coagulase positive Staphylococci had only intermediate sensitivity to Gentamicin (42.9%) (Table 2).
The V50 velocities were often sensitive to the precise projectile impact location relative to the principal yarns.
The spectral clustering algorithm is chosen because a conventional clustering algorithm (e.g., k-means) is often sensitive to centroid selection (for initialization).
The application of a predicate to an entity (or the application of the negated predicate) seems to be often sensitive to the part structure of the entity (Löbner 2000; Corblin 2008).
